Home / 749,345.60-1,124,018.40-670,613.60

Finding the Fourth Proportional to 749,345.60, 1,124,018.40 and 670,613.60

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Solution

The fourth proportional to 749,345.60, 1,124,018.40 and 670,613.60 is: 1,005,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,345.60 : 1,124,018.40 = 670,613.60 : x
  2. Step 2: Convert to fraction form
    749,345.60/1,124,018.40 = 670,613.60/x
  3. Step 3: Cross multiply
    749,345.60x = 1,124,018.40 × 670,613.60
  4. Step 4: Simplify right side
    749,345.60x = 753,782,025,690.24
  5. Step 5: Solve for x
    x = 753,782,025,690.24/749,345.60
  6. Step 6: Final answer
    x = 1,005,920.40

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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.