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Finding the Fourth Proportional to 487,960.61, 731,433.46 and 188,646.77

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Solution

The fourth proportional to 487,960.61, 731,433.46 and 188,646.77 is: 282,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,960.61 : 731,433.46 = 188,646.77 : x
  2. Step 2: Convert to fraction form
    487,960.61/731,433.46 = 188,646.77/x
  3. Step 3: Cross multiply
    487,960.61x = 731,433.46 × 188,646.77
  4. Step 4: Simplify right side
    487,960.61x = 137,982,556,277.57
  5. Step 5: Solve for x
    x = 137,982,556,277.57/487,960.61
  6. Step 6: Final answer
    x = 282,773.97

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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.