Home / 1,343,278.60-2,016,473.10-811,400.20

Finding the Fourth Proportional to 1,343,278.60, 2,016,473.10 and 811,400.20

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Solution

The fourth proportional to 1,343,278.60, 2,016,473.10 and 811,400.20 is: 1,218,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,278.60 : 2,016,473.10 = 811,400.20 : x
  2. Step 2: Convert to fraction form
    1,343,278.60/2,016,473.10 = 811,400.20/x
  3. Step 3: Cross multiply
    1,343,278.60x = 2,016,473.10 × 811,400.20
  4. Step 4: Simplify right side
    1,343,278.60x = 1,636,166,676,634.62
  5. Step 5: Solve for x
    x = 1,636,166,676,634.62/1,343,278.60
  6. Step 6: Final answer
    x = 1,218,039.71

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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.