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Finding the Fourth Proportional to 668,752.47, 923,195.88 and 423,859.50

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Solution

The fourth proportional to 668,752.47, 923,195.88 and 423,859.50 is: 585,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,752.47 : 923,195.88 = 423,859.50 : x
  2. Step 2: Convert to fraction form
    668,752.47/923,195.88 = 423,859.50/x
  3. Step 3: Cross multiply
    668,752.47x = 923,195.88 × 423,859.50
  4. Step 4: Simplify right side
    668,752.47x = 391,305,344,098.86
  5. Step 5: Solve for x
    x = 391,305,344,098.86/668,752.47
  6. Step 6: Final answer
    x = 585,127.33

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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.