Home / 487,431.40-731,162.06-132,452.92

Finding the Fourth Proportional to 487,431.40, 731,162.06 and 132,452.92

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Solution

The fourth proportional to 487,431.40, 731,162.06 and 132,452.92 is: 198,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,431.40 : 731,162.06 = 132,452.92 : x
  2. Step 2: Convert to fraction form
    487,431.40/731,162.06 = 132,452.92/x
  3. Step 3: Cross multiply
    487,431.40x = 731,162.06 × 132,452.92
  4. Step 4: Simplify right side
    487,431.40x = 96,844,549,840.22
  5. Step 5: Solve for x
    x = 96,844,549,840.22/487,431.40
  6. Step 6: Final answer
    x = 198,683.45

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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.