Home / 887,190.30-1,330,785.45-326,151.90

Finding the Fourth Proportional to 887,190.30, 1,330,785.45 and 326,151.90

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Solution

The fourth proportional to 887,190.30, 1,330,785.45 and 326,151.90 is: 489,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,190.30 : 1,330,785.45 = 326,151.90 : x
  2. Step 2: Convert to fraction form
    887,190.30/1,330,785.45 = 326,151.90/x
  3. Step 3: Cross multiply
    887,190.30x = 1,330,785.45 × 326,151.90
  4. Step 4: Simplify right side
    887,190.30x = 434,038,203,009.86
  5. Step 5: Solve for x
    x = 434,038,203,009.86/887,190.30
  6. Step 6: Final answer
    x = 489,227.85

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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.