Home / 721,169-1,081,523.46-247,740.20

Finding the Fourth Proportional to 721,169, 1,081,523.46 and 247,740.20

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Solution

The fourth proportional to 721,169, 1,081,523.46 and 247,740.20 is: 371,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,169 : 1,081,523.46 = 247,740.20 : x
  2. Step 2: Convert to fraction form
    721,169/1,081,523.46 = 247,740.20/x
  3. Step 3: Cross multiply
    721,169x = 1,081,523.46 × 247,740.20
  4. Step 4: Simplify right side
    721,169x = 267,936,838,285.09
  5. Step 5: Solve for x
    x = 267,936,838,285.09/721,169
  6. Step 6: Final answer
    x = 371,531.28

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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.