Home / 426,937.77-639,078.05-268,834.07

Finding the Fourth Proportional to 426,937.77, 639,078.05 and 268,834.07

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Solution

The fourth proportional to 426,937.77, 639,078.05 and 268,834.07 is: 402,414.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,937.77 : 639,078.05 = 268,834.07 : x
  2. Step 2: Convert to fraction form
    426,937.77/639,078.05 = 268,834.07/x
  3. Step 3: Cross multiply
    426,937.77x = 639,078.05 × 268,834.07
  4. Step 4: Simplify right side
    426,937.77x = 171,805,955,498.94
  5. Step 5: Solve for x
    x = 171,805,955,498.94/426,937.77
  6. Step 6: Final answer
    x = 402,414.51

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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.