Home / 1,387,102.30-2,080,711.05-440,446.30

Finding the Fourth Proportional to 1,387,102.30, 2,080,711.05 and 440,446.30

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Solution

The fourth proportional to 1,387,102.30, 2,080,711.05 and 440,446.30 is: 660,687.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,102.30 : 2,080,711.05 = 440,446.30 : x
  2. Step 2: Convert to fraction form
    1,387,102.30/2,080,711.05 = 440,446.30/x
  3. Step 3: Cross multiply
    1,387,102.30x = 2,080,711.05 × 440,446.30
  4. Step 4: Simplify right side
    1,387,102.30x = 916,441,483,341.62
  5. Step 5: Solve for x
    x = 916,441,483,341.62/1,387,102.30
  6. Step 6: Final answer
    x = 660,687.74

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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.