Home / 744,019.10-1,116,028.65-520,070.30

Finding the Fourth Proportional to 744,019.10, 1,116,028.65 and 520,070.30

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Solution

The fourth proportional to 744,019.10, 1,116,028.65 and 520,070.30 is: 780,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,019.10 : 1,116,028.65 = 520,070.30 : x
  2. Step 2: Convert to fraction form
    744,019.10/1,116,028.65 = 520,070.30/x
  3. Step 3: Cross multiply
    744,019.10x = 1,116,028.65 × 520,070.30
  4. Step 4: Simplify right side
    744,019.10x = 580,413,354,814.10
  5. Step 5: Solve for x
    x = 580,413,354,814.10/744,019.10
  6. Step 6: Final answer
    x = 780,105.45

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Double scale
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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.