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Finding the Fourth Proportional to 887,687.10, 1,330,874.55 and 488,778.30

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Solution

The fourth proportional to 887,687.10, 1,330,874.55 and 488,778.30 is: 732,806.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,687.10 : 1,330,874.55 = 488,778.30 : x
  2. Step 2: Convert to fraction form
    887,687.10/1,330,874.55 = 488,778.30/x
  3. Step 3: Cross multiply
    887,687.10x = 1,330,874.55 × 488,778.30
  4. Step 4: Simplify right side
    887,687.10x = 650,502,600,062.27
  5. Step 5: Solve for x
    x = 650,502,600,062.27/887,687.10
  6. Step 6: Final answer
    x = 732,806.19

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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.