Home / 527,433.68-727,710.75-331,221.29

Finding the Fourth Proportional to 527,433.68, 727,710.75 and 331,221.29

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Solution

The fourth proportional to 527,433.68, 727,710.75 and 331,221.29 is: 456,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,433.68 : 727,710.75 = 331,221.29 : x
  2. Step 2: Convert to fraction form
    527,433.68/727,710.75 = 331,221.29/x
  3. Step 3: Cross multiply
    527,433.68x = 727,710.75 × 331,221.29
  4. Step 4: Simplify right side
    527,433.68x = 241,033,293,361.87
  5. Step 5: Solve for x
    x = 241,033,293,361.87/527,433.68
  6. Step 6: Final answer
    x = 456,992.61

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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.