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Finding the Fourth Proportional to 556,687.68, 835,182.18 and 396,965.40

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Solution

The fourth proportional to 556,687.68, 835,182.18 and 396,965.40 is: 595,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,687.68 : 835,182.18 = 396,965.40 : x
  2. Step 2: Convert to fraction form
    556,687.68/835,182.18 = 396,965.40/x
  3. Step 3: Cross multiply
    556,687.68x = 835,182.18 × 396,965.40
  4. Step 4: Simplify right side
    556,687.68x = 331,538,428,156.57
  5. Step 5: Solve for x
    x = 331,538,428,156.57/556,687.68
  6. Step 6: Final answer
    x = 595,555.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.