Home / 812,440.27-1,217,864.98-339,260.95

Finding the Fourth Proportional to 812,440.27, 1,217,864.98 and 339,260.95

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Solution

The fourth proportional to 812,440.27, 1,217,864.98 and 339,260.95 is: 508,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,440.27 : 1,217,864.98 = 339,260.95 : x
  2. Step 2: Convert to fraction form
    812,440.27/1,217,864.98 = 339,260.95/x
  3. Step 3: Cross multiply
    812,440.27x = 1,217,864.98 × 339,260.95
  4. Step 4: Simplify right side
    812,440.27x = 413,174,030,086.53
  5. Step 5: Solve for x
    x = 413,174,030,086.53/812,440.27
  6. Step 6: Final answer
    x = 508,559.27

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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.