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Finding the Fourth Proportional to 535,371.68, 739,680.72 and 455,641.76

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Solution

The fourth proportional to 535,371.68, 739,680.72 and 455,641.76 is: 629,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,371.68 : 739,680.72 = 455,641.76 : x
  2. Step 2: Convert to fraction form
    535,371.68/739,680.72 = 455,641.76/x
  3. Step 3: Cross multiply
    535,371.68x = 739,680.72 × 455,641.76
  4. Step 4: Simplify right side
    535,371.68x = 337,029,425,098.87
  5. Step 5: Solve for x
    x = 337,029,425,098.87/535,371.68
  6. Step 6: Final answer
    x = 629,524.19

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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.