Home / 721,966.26-996,300.93-399,669.30

Finding the Fourth Proportional to 721,966.26, 996,300.93 and 399,669.30

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Solution

The fourth proportional to 721,966.26, 996,300.93 and 399,669.30 is: 551,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,966.26 : 996,300.93 = 399,669.30 : x
  2. Step 2: Convert to fraction form
    721,966.26/996,300.93 = 399,669.30/x
  3. Step 3: Cross multiply
    721,966.26x = 996,300.93 × 399,669.30
  4. Step 4: Simplify right side
    721,966.26x = 398,190,895,282.45
  5. Step 5: Solve for x
    x = 398,190,895,282.45/721,966.26
  6. Step 6: Final answer
    x = 551,536.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.