Home / 487,730.50-731,582.01-132,747.60

Finding the Fourth Proportional to 487,730.50, 731,582.01 and 132,747.60

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Solution

The fourth proportional to 487,730.50, 731,582.01 and 132,747.60 is: 199,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,730.50 : 731,582.01 = 132,747.60 : x
  2. Step 2: Convert to fraction form
    487,730.50/731,582.01 = 132,747.60/x
  3. Step 3: Cross multiply
    487,730.50x = 731,582.01 × 132,747.60
  4. Step 4: Simplify right side
    487,730.50x = 97,115,752,372.77
  5. Step 5: Solve for x
    x = 97,115,752,372.77/487,730.50
  6. Step 6: Final answer
    x = 199,117.65

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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.