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Finding the Fourth Proportional to 527,694.80, 728,182.86 and 336,687.08

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Solution

The fourth proportional to 527,694.80, 728,182.86 and 336,687.08 is: 464,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,694.80 : 728,182.86 = 336,687.08 : x
  2. Step 2: Convert to fraction form
    527,694.80/728,182.86 = 336,687.08/x
  3. Step 3: Cross multiply
    527,694.80x = 728,182.86 × 336,687.08
  4. Step 4: Simplify right side
    527,694.80x = 245,169,760,839.45
  5. Step 5: Solve for x
    x = 245,169,760,839.45/527,694.80
  6. Step 6: Final answer
    x = 464,605.22

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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.