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Finding the Fourth Proportional to 469,569.52, 647,611.80 and 308,301.04

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Solution

The fourth proportional to 469,569.52, 647,611.80 and 308,301.04 is: 425,196.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,569.52 : 647,611.80 = 308,301.04 : x
  2. Step 2: Convert to fraction form
    469,569.52/647,611.80 = 308,301.04/x
  3. Step 3: Cross multiply
    469,569.52x = 647,611.80 × 308,301.04
  4. Step 4: Simplify right side
    469,569.52x = 199,659,391,456.27
  5. Step 5: Solve for x
    x = 199,659,391,456.27/469,569.52
  6. Step 6: Final answer
    x = 425,196.66

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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.