Home / 781,635.20-1,172,452.80-571,683.20

Finding the Fourth Proportional to 781,635.20, 1,172,452.80 and 571,683.20

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Solution

The fourth proportional to 781,635.20, 1,172,452.80 and 571,683.20 is: 857,524.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,635.20 : 1,172,452.80 = 571,683.20 : x
  2. Step 2: Convert to fraction form
    781,635.20/1,172,452.80 = 571,683.20/x
  3. Step 3: Cross multiply
    781,635.20x = 1,172,452.80 × 571,683.20
  4. Step 4: Simplify right side
    781,635.20x = 670,271,568,552.96
  5. Step 5: Solve for x
    x = 670,271,568,552.96/781,635.20
  6. Step 6: Final answer
    x = 857,524.80

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Similar ratio
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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.