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Finding the Fourth Proportional to 472,474.27, 709,043.51 and 427,301.79

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Solution

The fourth proportional to 472,474.27, 709,043.51 and 427,301.79 is: 641,253.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,474.27 : 709,043.51 = 427,301.79 : x
  2. Step 2: Convert to fraction form
    472,474.27/709,043.51 = 427,301.79/x
  3. Step 3: Cross multiply
    472,474.27x = 709,043.51 × 427,301.79
  4. Step 4: Simplify right side
    472,474.27x = 302,975,561,010.88
  5. Step 5: Solve for x
    x = 302,975,561,010.88/472,474.27
  6. Step 6: Final answer
    x = 641,253.04

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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.