Home / 1,581,426.20-2,181,476.85-1,000,469

Finding the Fourth Proportional to 1,581,426.20, 2,181,476.85 and 1,000,469

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Solution

The fourth proportional to 1,581,426.20, 2,181,476.85 and 1,000,469 is: 1,380,083.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,426.20 : 2,181,476.85 = 1,000,469 : x
  2. Step 2: Convert to fraction form
    1,581,426.20/2,181,476.85 = 1,000,469/x
  3. Step 3: Cross multiply
    1,581,426.20x = 2,181,476.85 × 1,000,469
  4. Step 4: Simplify right side
    1,581,426.20x = 2,182,499,962,642.65
  5. Step 5: Solve for x
    x = 2,182,499,962,642.65/1,581,426.20
  6. Step 6: Final answer
    x = 1,380,083.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.