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Finding the Fourth Proportional to 723,882.81, 999,046.87 and 417,958.68

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Solution

The fourth proportional to 723,882.81, 999,046.87 and 417,958.68 is: 576,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,882.81 : 999,046.87 = 417,958.68 : x
  2. Step 2: Convert to fraction form
    723,882.81/999,046.87 = 417,958.68/x
  3. Step 3: Cross multiply
    723,882.81x = 999,046.87 × 417,958.68
  4. Step 4: Simplify right side
    723,882.81x = 417,560,316,095.88
  5. Step 5: Solve for x
    x = 417,560,316,095.88/723,882.81
  6. Step 6: Final answer
    x = 576,834.13

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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.