Home / 887,662.20-1,331,493.30-355,265.40

Finding the Fourth Proportional to 887,662.20, 1,331,493.30 and 355,265.40

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Solution

The fourth proportional to 887,662.20, 1,331,493.30 and 355,265.40 is: 532,898.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,662.20 : 1,331,493.30 = 355,265.40 : x
  2. Step 2: Convert to fraction form
    887,662.20/1,331,493.30 = 355,265.40/x
  3. Step 3: Cross multiply
    887,662.20x = 1,331,493.30 × 355,265.40
  4. Step 4: Simplify right side
    887,662.20x = 473,033,499,821.82
  5. Step 5: Solve for x
    x = 473,033,499,821.82/887,662.20
  6. Step 6: Final answer
    x = 532,898.10

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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.