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Finding the Fourth Proportional to 629,970.08, 869,458.40 and 375,468.88

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Solution

The fourth proportional to 629,970.08, 869,458.40 and 375,468.88 is: 518,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,970.08 : 869,458.40 = 375,468.88 : x
  2. Step 2: Convert to fraction form
    629,970.08/869,458.40 = 375,468.88/x
  3. Step 3: Cross multiply
    629,970.08x = 869,458.40 × 375,468.88
  4. Step 4: Simplify right side
    629,970.08x = 326,454,571,654.59
  5. Step 5: Solve for x
    x = 326,454,571,654.59/629,970.08
  6. Step 6: Final answer
    x = 518,206.47

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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.