Home / 747,126.60-1,120,689.90-510,930.60

Finding the Fourth Proportional to 747,126.60, 1,120,689.90 and 510,930.60

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Solution

The fourth proportional to 747,126.60, 1,120,689.90 and 510,930.60 is: 766,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,126.60 : 1,120,689.90 = 510,930.60 : x
  2. Step 2: Convert to fraction form
    747,126.60/1,120,689.90 = 510,930.60/x
  3. Step 3: Cross multiply
    747,126.60x = 1,120,689.90 × 510,930.60
  4. Step 4: Simplify right side
    747,126.60x = 572,594,763,020.94
  5. Step 5: Solve for x
    x = 572,594,763,020.94/747,126.60
  6. Step 6: Final answer
    x = 766,395.90

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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.