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Finding the Fourth Proportional to 454,169.43, 626,723.73 and 272,889

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Solution

The fourth proportional to 454,169.43, 626,723.73 and 272,889 is: 376,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,169.43 : 626,723.73 = 272,889 : x
  2. Step 2: Convert to fraction form
    454,169.43/626,723.73 = 272,889/x
  3. Step 3: Cross multiply
    454,169.43x = 626,723.73 × 272,889
  4. Step 4: Simplify right side
    454,169.43x = 171,026,011,955.97
  5. Step 5: Solve for x
    x = 171,026,011,955.97/454,169.43
  6. Step 6: Final answer
    x = 376,568.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.