Home / 426,938.52-639,079.18-268,834.82

Finding the Fourth Proportional to 426,938.52, 639,079.18 and 268,834.82

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Solution

The fourth proportional to 426,938.52, 639,079.18 and 268,834.82 is: 402,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,938.52 : 639,079.18 = 268,834.82 : x
  2. Step 2: Convert to fraction form
    426,938.52/639,079.18 = 268,834.82/x
  3. Step 3: Cross multiply
    426,938.52x = 639,079.18 × 268,834.82
  4. Step 4: Simplify right side
    426,938.52x = 171,806,737,246.66
  5. Step 5: Solve for x
    x = 171,806,737,246.66/426,938.52
  6. Step 6: Final answer
    x = 402,415.64

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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.