Home / 1,585,691.91-2,378,832.98-721,189.04

Finding the Fourth Proportional to 1,585,691.91, 2,378,832.98 and 721,189.04

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Solution

The fourth proportional to 1,585,691.91, 2,378,832.98 and 721,189.04 is: 1,081,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,691.91 : 2,378,832.98 = 721,189.04 : x
  2. Step 2: Convert to fraction form
    1,585,691.91/2,378,832.98 = 721,189.04/x
  3. Step 3: Cross multiply
    1,585,691.91x = 2,378,832.98 × 721,189.04
  4. Step 4: Simplify right side
    1,585,691.91x = 1,715,588,257,666.43
  5. Step 5: Solve for x
    x = 1,715,588,257,666.43/1,585,691.91
  6. Step 6: Final answer
    x = 1,081,917.77

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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.