Home / 667,764.24-921,833.76-381,228.96

Finding the Fourth Proportional to 667,764.24, 921,833.76 and 381,228.96

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Solution

The fourth proportional to 667,764.24, 921,833.76 and 381,228.96 is: 526,278.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,764.24 : 921,833.76 = 381,228.96 : x
  2. Step 2: Convert to fraction form
    667,764.24/921,833.76 = 381,228.96/x
  3. Step 3: Cross multiply
    667,764.24x = 921,833.76 × 381,228.96
  4. Step 4: Simplify right side
    667,764.24x = 351,429,725,617.69
  5. Step 5: Solve for x
    x = 351,429,725,617.69/667,764.24
  6. Step 6: Final answer
    x = 526,278.15

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1.5x scale

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.