Home / 762,900.16-1,145,103.54-572,699.20

Finding the Fourth Proportional to 762,900.16, 1,145,103.54 and 572,699.20

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Solution

The fourth proportional to 762,900.16, 1,145,103.54 and 572,699.20 is: 859,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,900.16 : 1,145,103.54 = 572,699.20 : x
  2. Step 2: Convert to fraction form
    762,900.16/1,145,103.54 = 572,699.20/x
  3. Step 3: Cross multiply
    762,900.16x = 1,145,103.54 × 572,699.20
  4. Step 4: Simplify right side
    762,900.16x = 655,799,881,275.17
  5. Step 5: Solve for x
    x = 655,799,881,275.17/762,900.16
  6. Step 6: Final answer
    x = 859,614.29

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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.