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Finding the Fourth Proportional to 454,125, 626,711.94 and 252,921

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Solution

The fourth proportional to 454,125, 626,711.94 and 252,921 is: 349,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,125 : 626,711.94 = 252,921 : x
  2. Step 2: Convert to fraction form
    454,125/626,711.94 = 252,921/x
  3. Step 3: Cross multiply
    454,125x = 626,711.94 × 252,921
  4. Step 4: Simplify right side
    454,125x = 158,508,610,576.74
  5. Step 5: Solve for x
    x = 158,508,610,576.74/454,125
  6. Step 6: Final answer
    x = 349,041.81

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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.