Home / 664,417.86-996,785.52-215,139.24

Finding the Fourth Proportional to 664,417.86, 996,785.52 and 215,139.24

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Solution

The fourth proportional to 664,417.86, 996,785.52 and 215,139.24 is: 322,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,417.86 : 996,785.52 = 215,139.24 : x
  2. Step 2: Convert to fraction form
    664,417.86/996,785.52 = 215,139.24/x
  3. Step 3: Cross multiply
    664,417.86x = 996,785.52 × 215,139.24
  4. Step 4: Simplify right side
    664,417.86x = 214,447,679,215.81
  5. Step 5: Solve for x
    x = 214,447,679,215.81/664,417.86
  6. Step 6: Final answer
    x = 322,760.26

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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.