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Finding the Fourth Proportional to 487,005, 730,507.52 and 132,019.04

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Solution

The fourth proportional to 487,005, 730,507.52 and 132,019.04 is: 198,028.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,005 : 730,507.52 = 132,019.04 : x
  2. Step 2: Convert to fraction form
    487,005/730,507.52 = 132,019.04/x
  3. Step 3: Cross multiply
    487,005x = 730,507.52 × 132,019.04
  4. Step 4: Simplify right side
    487,005x = 96,440,901,503.18
  5. Step 5: Solve for x
    x = 96,440,901,503.18/487,005
  6. Step 6: Final answer
    x = 198,028.57

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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.