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Finding the Fourth Proportional to 503,715.79, 755,572.87 and 345,464.47

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Solution

The fourth proportional to 503,715.79, 755,572.87 and 345,464.47 is: 518,196.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,715.79 : 755,572.87 = 345,464.47 : x
  2. Step 2: Convert to fraction form
    503,715.79/755,572.87 = 345,464.47/x
  3. Step 3: Cross multiply
    503,715.79x = 755,572.87 × 345,464.47
  4. Step 4: Simplify right side
    503,715.79x = 261,023,581,080.93
  5. Step 5: Solve for x
    x = 261,023,581,080.93/503,715.79
  6. Step 6: Final answer
    x = 518,196.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.