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Finding the Fourth Proportional to 629,869.76, 869,298.72 and 361,592

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Solution

The fourth proportional to 629,869.76, 869,298.72 and 361,592 is: 499,042.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,869.76 : 869,298.72 = 361,592 : x
  2. Step 2: Convert to fraction form
    629,869.76/869,298.72 = 361,592/x
  3. Step 3: Cross multiply
    629,869.76x = 869,298.72 × 361,592
  4. Step 4: Simplify right side
    629,869.76x = 314,331,462,762.24
  5. Step 5: Solve for x
    x = 314,331,462,762.24/629,869.76
  6. Step 6: Final answer
    x = 499,042.00

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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.