Home / 887,000.40-1,330,500.60-255,934.80

Finding the Fourth Proportional to 887,000.40, 1,330,500.60 and 255,934.80

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Solution

The fourth proportional to 887,000.40, 1,330,500.60 and 255,934.80 is: 383,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,000.40 : 1,330,500.60 = 255,934.80 : x
  2. Step 2: Convert to fraction form
    887,000.40/1,330,500.60 = 255,934.80/x
  3. Step 3: Cross multiply
    887,000.40x = 1,330,500.60 × 255,934.80
  4. Step 4: Simplify right side
    887,000.40x = 340,521,404,960.88
  5. Step 5: Solve for x
    x = 340,521,404,960.88/887,000.40
  6. Step 6: Final answer
    x = 383,902.20

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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.