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Finding the Fourth Proportional to 667,277.94, 920,844.03 and 361,356.72

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Solution

The fourth proportional to 667,277.94, 920,844.03 and 361,356.72 is: 498,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,277.94 : 920,844.03 = 361,356.72 : x
  2. Step 2: Convert to fraction form
    667,277.94/920,844.03 = 361,356.72/x
  3. Step 3: Cross multiply
    667,277.94x = 920,844.03 × 361,356.72
  4. Step 4: Simplify right side
    667,277.94x = 332,753,178,312.38
  5. Step 5: Solve for x
    x = 332,753,178,312.38/667,277.94
  6. Step 6: Final answer
    x = 498,672.53

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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.