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Finding the Fourth Proportional to 450,326.76, 676,262.88 and 399,839.88

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Solution

The fourth proportional to 450,326.76, 676,262.88 and 399,839.88 is: 600,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,326.76 : 676,262.88 = 399,839.88 : x
  2. Step 2: Convert to fraction form
    450,326.76/676,262.88 = 399,839.88/x
  3. Step 3: Cross multiply
    450,326.76x = 676,262.88 × 399,839.88
  4. Step 4: Simplify right side
    450,326.76x = 270,396,868,787.65
  5. Step 5: Solve for x
    x = 270,396,868,787.65/450,326.76
  6. Step 6: Final answer
    x = 600,445.93

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1.5x scale

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.