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Finding the Fourth Proportional to 527,826.04, 729,005.28 and 347,343.70

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Solution

The fourth proportional to 527,826.04, 729,005.28 and 347,343.70 is: 479,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,826.04 : 729,005.28 = 347,343.70 : x
  2. Step 2: Convert to fraction form
    527,826.04/729,005.28 = 347,343.70/x
  3. Step 3: Cross multiply
    527,826.04x = 729,005.28 × 347,343.70
  4. Step 4: Simplify right side
    527,826.04x = 253,215,390,754.76
  5. Step 5: Solve for x
    x = 253,215,390,754.76/527,826.04
  6. Step 6: Final answer
    x = 479,732.66

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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.