Home / 726,167.18-1,002,105.06-399,473.12

Finding the Fourth Proportional to 726,167.18, 1,002,105.06 and 399,473.12

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Solution

The fourth proportional to 726,167.18, 1,002,105.06 and 399,473.12 is: 551,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,167.18 : 1,002,105.06 = 399,473.12 : x
  2. Step 2: Convert to fraction form
    726,167.18/1,002,105.06 = 399,473.12/x
  3. Step 3: Cross multiply
    726,167.18x = 1,002,105.06 × 399,473.12
  4. Step 4: Simplify right side
    726,167.18x = 400,314,034,885.99
  5. Step 5: Solve for x
    x = 400,314,034,885.99/726,167.18
  6. Step 6: Final answer
    x = 551,269.80

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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.