Home / 667,766.24-921,836.52-381,230.96

Finding the Fourth Proportional to 667,766.24, 921,836.52 and 381,230.96

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Solution

The fourth proportional to 667,766.24, 921,836.52 and 381,230.96 is: 526,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,766.24 : 921,836.52 = 381,230.96 : x
  2. Step 2: Convert to fraction form
    667,766.24/921,836.52 = 381,230.96/x
  3. Step 3: Cross multiply
    667,766.24x = 921,836.52 × 381,230.96
  4. Step 4: Simplify right side
    667,766.24x = 351,432,621,482.66
  5. Step 5: Solve for x
    x = 351,432,621,482.66/667,766.24
  6. Step 6: Final answer
    x = 526,280.91

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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.