Home / 931,540.20-1,397,310.30-332,520.90

Finding the Fourth Proportional to 931,540.20, 1,397,310.30 and 332,520.90

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Solution

The fourth proportional to 931,540.20, 1,397,310.30 and 332,520.90 is: 498,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,540.20 : 1,397,310.30 = 332,520.90 : x
  2. Step 2: Convert to fraction form
    931,540.20/1,397,310.30 = 332,520.90/x
  3. Step 3: Cross multiply
    931,540.20x = 1,397,310.30 × 332,520.90
  4. Step 4: Simplify right side
    931,540.20x = 464,634,878,535.27
  5. Step 5: Solve for x
    x = 464,634,878,535.27/931,540.20
  6. Step 6: Final answer
    x = 498,781.35

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Double scale
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Similar ratio
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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.