Home / 749,345.40-1,124,018.10-216,883.80

Finding the Fourth Proportional to 749,345.40, 1,124,018.10 and 216,883.80

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Solution

The fourth proportional to 749,345.40, 1,124,018.10 and 216,883.80 is: 325,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,345.40 : 1,124,018.10 = 216,883.80 : x
  2. Step 2: Convert to fraction form
    749,345.40/1,124,018.10 = 216,883.80/x
  3. Step 3: Cross multiply
    749,345.40x = 1,124,018.10 × 216,883.80
  4. Step 4: Simplify right side
    749,345.40x = 243,781,316,796.78
  5. Step 5: Solve for x
    x = 243,781,316,796.78/749,345.40
  6. Step 6: Final answer
    x = 325,325.70

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Half scale
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Double scale
Find fourth proportional to 749,346.40, 1,124,019.60 and 216,884.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.