Home / 487,683.05-731,450.66-132,724.73

Finding the Fourth Proportional to 487,683.05, 731,450.66 and 132,724.73

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Solution

The fourth proportional to 487,683.05, 731,450.66 and 132,724.73 is: 199,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,683.05 : 731,450.66 = 132,724.73 : x
  2. Step 2: Convert to fraction form
    487,683.05/731,450.66 = 132,724.73/x
  3. Step 3: Cross multiply
    487,683.05x = 731,450.66 × 132,724.73
  4. Step 4: Simplify right side
    487,683.05x = 97,081,587,035.94
  5. Step 5: Solve for x
    x = 97,081,587,035.94/487,683.05
  6. Step 6: Final answer
    x = 199,066.97

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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.