Home / 426,624.74-639,689.52-201,983.27

Finding the Fourth Proportional to 426,624.74, 639,689.52 and 201,983.27

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Solution

The fourth proportional to 426,624.74, 639,689.52 and 201,983.27 is: 302,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,624.74 : 639,689.52 = 201,983.27 : x
  2. Step 2: Convert to fraction form
    426,624.74/639,689.52 = 201,983.27/x
  3. Step 3: Cross multiply
    426,624.74x = 639,689.52 × 201,983.27
  4. Step 4: Simplify right side
    426,624.74x = 129,206,577,835.88
  5. Step 5: Solve for x
    x = 129,206,577,835.88/426,624.74
  6. Step 6: Final answer
    x = 302,857.68

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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.