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Finding the Fourth Proportional to 454,053.79, 681,081.53 and 426,308.83

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Solution

The fourth proportional to 454,053.79, 681,081.53 and 426,308.83 is: 639,464.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,053.79 : 681,081.53 = 426,308.83 : x
  2. Step 2: Convert to fraction form
    454,053.79/681,081.53 = 426,308.83/x
  3. Step 3: Cross multiply
    454,053.79x = 681,081.53 × 426,308.83
  4. Step 4: Simplify right side
    454,053.79x = 290,351,065,996.39
  5. Step 5: Solve for x
    x = 290,351,065,996.39/454,053.79
  6. Step 6: Final answer
    x = 639,464.04

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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.