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Finding the Fourth Proportional to 488,716.50, 732,844.70 and 189,337.26

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Solution

The fourth proportional to 488,716.50, 732,844.70 and 189,337.26 is: 283,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,716.50 : 732,844.70 = 189,337.26 : x
  2. Step 2: Convert to fraction form
    488,716.50/732,844.70 = 189,337.26/x
  3. Step 3: Cross multiply
    488,716.50x = 732,844.70 × 189,337.26
  4. Step 4: Simplify right side
    488,716.50x = 138,754,807,503.52
  5. Step 5: Solve for x
    x = 138,754,807,503.52/488,716.50
  6. Step 6: Final answer
    x = 283,916.76

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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.