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Finding the Fourth Proportional to 486,999, 730,498.50 and 132,013.02

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Solution

The fourth proportional to 486,999, 730,498.50 and 132,013.02 is: 198,019.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,999 : 730,498.50 = 132,013.02 : x
  2. Step 2: Convert to fraction form
    486,999/730,498.50 = 132,013.02/x
  3. Step 3: Cross multiply
    486,999x = 730,498.50 × 132,013.02
  4. Step 4: Simplify right side
    486,999x = 96,435,313,090.47
  5. Step 5: Solve for x
    x = 96,435,313,090.47/486,999
  6. Step 6: Final answer
    x = 198,019.53

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1.5x scale

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.