Home / 527,426.46-727,849.35-312,672.06

Finding the Fourth Proportional to 527,426.46, 727,849.35 and 312,672.06

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Solution

The fourth proportional to 527,426.46, 727,849.35 and 312,672.06 is: 431,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,426.46 : 727,849.35 = 312,672.06 : x
  2. Step 2: Convert to fraction form
    527,426.46/727,849.35 = 312,672.06/x
  3. Step 3: Cross multiply
    527,426.46x = 727,849.35 × 312,672.06
  4. Step 4: Simplify right side
    527,426.46x = 227,578,155,634.16
  5. Step 5: Solve for x
    x = 227,578,155,634.16/527,426.46
  6. Step 6: Final answer
    x = 431,487.94

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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.