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Finding the Fourth Proportional to 629,005.32, 868,063.77 and 473,678.55

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Solution

The fourth proportional to 629,005.32, 868,063.77 and 473,678.55 is: 653,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,005.32 : 868,063.77 = 473,678.55 : x
  2. Step 2: Convert to fraction form
    629,005.32/868,063.77 = 473,678.55/x
  3. Step 3: Cross multiply
    629,005.32x = 868,063.77 × 473,678.55
  4. Step 4: Simplify right side
    629,005.32x = 411,183,187,881.13
  5. Step 5: Solve for x
    x = 411,183,187,881.13/629,005.32
  6. Step 6: Final answer
    x = 653,703.83

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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.