Home / 1,581,789.60-2,182,842.68-856,631.43

Finding the Fourth Proportional to 1,581,789.60, 2,182,842.68 and 856,631.43

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Solution

The fourth proportional to 1,581,789.60, 2,182,842.68 and 856,631.43 is: 1,182,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,789.60 : 2,182,842.68 = 856,631.43 : x
  2. Step 2: Convert to fraction form
    1,581,789.60/2,182,842.68 = 856,631.43/x
  3. Step 3: Cross multiply
    1,581,789.60x = 2,182,842.68 × 856,631.43
  4. Step 4: Simplify right side
    1,581,789.60x = 1,869,891,642,150.28
  5. Step 5: Solve for x
    x = 1,869,891,642,150.28/1,581,789.60
  6. Step 6: Final answer
    x = 1,182,136.77

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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.