Home / 721,890.57-1,083,900.36-402,666.15

Finding the Fourth Proportional to 721,890.57, 1,083,900.36 and 402,666.15

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Solution

The fourth proportional to 721,890.57, 1,083,900.36 and 402,666.15 is: 604,593.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,890.57 : 1,083,900.36 = 402,666.15 : x
  2. Step 2: Convert to fraction form
    721,890.57/1,083,900.36 = 402,666.15/x
  3. Step 3: Cross multiply
    721,890.57x = 1,083,900.36 × 402,666.15
  4. Step 4: Simplify right side
    721,890.57x = 436,449,984,944.81
  5. Step 5: Solve for x
    x = 436,449,984,944.81/721,890.57
  6. Step 6: Final answer
    x = 604,593.00

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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.