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Finding the Fourth Proportional to 545,123.88, 752,263.31 and 303,406.52

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Solution

The fourth proportional to 545,123.88, 752,263.31 and 303,406.52 is: 418,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,123.88 : 752,263.31 = 303,406.52 : x
  2. Step 2: Convert to fraction form
    545,123.88/752,263.31 = 303,406.52/x
  3. Step 3: Cross multiply
    545,123.88x = 752,263.31 × 303,406.52
  4. Step 4: Simplify right side
    545,123.88x = 228,241,587,732.43
  5. Step 5: Solve for x
    x = 228,241,587,732.43/545,123.88
  6. Step 6: Final answer
    x = 418,696.73

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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.