Home / 766,130.20-1,147,445.70-451,202.20

Finding the Fourth Proportional to 766,130.20, 1,147,445.70 and 451,202.20

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Solution

The fourth proportional to 766,130.20, 1,147,445.70 and 451,202.20 is: 675,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,130.20 : 1,147,445.70 = 451,202.20 : x
  2. Step 2: Convert to fraction form
    766,130.20/1,147,445.70 = 451,202.20/x
  3. Step 3: Cross multiply
    766,130.20x = 1,147,445.70 × 451,202.20
  4. Step 4: Simplify right side
    766,130.20x = 517,730,024,220.54
  5. Step 5: Solve for x
    x = 517,730,024,220.54/766,130.20
  6. Step 6: Final answer
    x = 675,772.90

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Double scale
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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.