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Finding the Fourth Proportional to 667,360.72, 920,957.50 and 361,437.11

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Solution

The fourth proportional to 667,360.72, 920,957.50 and 361,437.11 is: 498,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,360.72 : 920,957.50 = 361,437.11 : x
  2. Step 2: Convert to fraction form
    667,360.72/920,957.50 = 361,437.11/x
  3. Step 3: Cross multiply
    667,360.72x = 920,957.50 × 361,437.11
  4. Step 4: Simplify right side
    667,360.72x = 332,868,215,425.64
  5. Step 5: Solve for x
    x = 332,868,215,425.64/667,360.72
  6. Step 6: Final answer
    x = 498,783.05

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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.