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Finding the Fourth Proportional to 633,437.43, 874,157.85 and 361,499.91

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Solution

The fourth proportional to 633,437.43, 874,157.85 and 361,499.91 is: 498,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,437.43 : 874,157.85 = 361,499.91 : x
  2. Step 2: Convert to fraction form
    633,437.43/874,157.85 = 361,499.91/x
  3. Step 3: Cross multiply
    633,437.43x = 874,157.85 × 361,499.91
  4. Step 4: Simplify right side
    633,437.43x = 316,007,984,100.79
  5. Step 5: Solve for x
    x = 316,007,984,100.79/633,437.43
  6. Step 6: Final answer
    x = 498,877.98

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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.