Home / 720,832.64-1,081,404.10-215,434.70

Finding the Fourth Proportional to 720,832.64, 1,081,404.10 and 215,434.70

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Solution

The fourth proportional to 720,832.64, 1,081,404.10 and 215,434.70 is: 323,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,832.64 : 1,081,404.10 = 215,434.70 : x
  2. Step 2: Convert to fraction form
    720,832.64/1,081,404.10 = 215,434.70/x
  3. Step 3: Cross multiply
    720,832.64x = 1,081,404.10 × 215,434.70
  4. Step 4: Simplify right side
    720,832.64x = 232,971,967,862.27
  5. Step 5: Solve for x
    x = 232,971,967,862.27/720,832.64
  6. Step 6: Final answer
    x = 323,198.42

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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.