Home / 527,426.96-727,850.04-312,672.56

Finding the Fourth Proportional to 527,426.96, 727,850.04 and 312,672.56

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Solution

The fourth proportional to 527,426.96, 727,850.04 and 312,672.56 is: 431,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,426.96 : 727,850.04 = 312,672.56 : x
  2. Step 2: Convert to fraction form
    527,426.96/727,850.04 = 312,672.56/x
  3. Step 3: Cross multiply
    527,426.96x = 727,850.04 × 312,672.56
  4. Step 4: Simplify right side
    527,426.96x = 227,578,735,302.90
  5. Step 5: Solve for x
    x = 227,578,735,302.90/527,426.96
  6. Step 6: Final answer
    x = 431,488.63

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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.