Home / 721,926.16-996,266.82-399,666.04

Finding the Fourth Proportional to 721,926.16, 996,266.82 and 399,666.04

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Solution

The fourth proportional to 721,926.16, 996,266.82 and 399,666.04 is: 551,543.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,926.16 : 996,266.82 = 399,666.04 : x
  2. Step 2: Convert to fraction form
    721,926.16/996,266.82 = 399,666.04/x
  3. Step 3: Cross multiply
    721,926.16x = 996,266.82 × 399,666.04
  4. Step 4: Simplify right side
    721,926.16x = 398,174,014,732.79
  5. Step 5: Solve for x
    x = 398,174,014,732.79/721,926.16
  6. Step 6: Final answer
    x = 551,543.96

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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.