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Finding the Fourth Proportional to 629,763.17, 869,040.37 and 357,793.31

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Solution

The fourth proportional to 629,763.17, 869,040.37 and 357,793.31 is: 493,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,763.17 : 869,040.37 = 357,793.31 : x
  2. Step 2: Convert to fraction form
    629,763.17/869,040.37 = 357,793.31/x
  3. Step 3: Cross multiply
    629,763.17x = 869,040.37 × 357,793.31
  4. Step 4: Simplify right side
    629,763.17x = 310,936,833,125.77
  5. Step 5: Solve for x
    x = 310,936,833,125.77/629,763.17
  6. Step 6: Final answer
    x = 493,736.14

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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.