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Finding the Fourth Proportional to 545,178.94, 752,346.84 and 303,456.34

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Solution

The fourth proportional to 545,178.94, 752,346.84 and 303,456.34 is: 418,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,178.94 : 752,346.84 = 303,456.34 : x
  2. Step 2: Convert to fraction form
    545,178.94/752,346.84 = 303,456.34/x
  3. Step 3: Cross multiply
    545,178.94x = 752,346.84 × 303,456.34
  4. Step 4: Simplify right side
    545,178.94x = 228,304,418,476.97
  5. Step 5: Solve for x
    x = 228,304,418,476.97/545,178.94
  6. Step 6: Final answer
    x = 418,769.70

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1.5x scale

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.