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Finding the Fourth Proportional to 610,307.46, 842,220.27 and 338,375.43

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Solution

The fourth proportional to 610,307.46, 842,220.27 and 338,375.43 is: 466,955.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,307.46 : 842,220.27 = 338,375.43 : x
  2. Step 2: Convert to fraction form
    610,307.46/842,220.27 = 338,375.43/x
  3. Step 3: Cross multiply
    610,307.46x = 842,220.27 × 338,375.43
  4. Step 4: Simplify right side
    610,307.46x = 284,986,646,015.97
  5. Step 5: Solve for x
    x = 284,986,646,015.97/610,307.46
  6. Step 6: Final answer
    x = 466,955.86

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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.