Home / 880,234.20-1,320,351.30-407,842.20

Finding the Fourth Proportional to 880,234.20, 1,320,351.30 and 407,842.20

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Solution

The fourth proportional to 880,234.20, 1,320,351.30 and 407,842.20 is: 611,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,234.20 : 1,320,351.30 = 407,842.20 : x
  2. Step 2: Convert to fraction form
    880,234.20/1,320,351.30 = 407,842.20/x
  3. Step 3: Cross multiply
    880,234.20x = 1,320,351.30 × 407,842.20
  4. Step 4: Simplify right side
    880,234.20x = 538,494,978,964.86
  5. Step 5: Solve for x
    x = 538,494,978,964.86/880,234.20
  6. Step 6: Final answer
    x = 611,763.30

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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.