Home / 880,711.70-1,321,067.55-576,281.30

Finding the Fourth Proportional to 880,711.70, 1,321,067.55 and 576,281.30

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Solution

The fourth proportional to 880,711.70, 1,321,067.55 and 576,281.30 is: 864,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,711.70 : 1,321,067.55 = 576,281.30 : x
  2. Step 2: Convert to fraction form
    880,711.70/1,321,067.55 = 576,281.30/x
  3. Step 3: Cross multiply
    880,711.70x = 1,321,067.55 × 576,281.30
  4. Step 4: Simplify right side
    880,711.70x = 761,306,525,101.82
  5. Step 5: Solve for x
    x = 761,306,525,101.82/880,711.70
  6. Step 6: Final answer
    x = 864,421.95

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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.