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Finding the Fourth Proportional to 667,521.48, 999,532.44 and 457,569.48

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Solution

The fourth proportional to 667,521.48, 999,532.44 and 457,569.48 is: 685,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,521.48 : 999,532.44 = 457,569.48 : x
  2. Step 2: Convert to fraction form
    667,521.48/999,532.44 = 457,569.48/x
  3. Step 3: Cross multiply
    667,521.48x = 999,532.44 × 457,569.48
  4. Step 4: Simplify right side
    667,521.48x = 457,355,538,813.93
  5. Step 5: Solve for x
    x = 457,355,538,813.93/667,521.48
  6. Step 6: Final answer
    x = 685,154.79

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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.