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Finding the Fourth Proportional to 667,377.24, 920,983.32 and 361,457.25

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Solution

The fourth proportional to 667,377.24, 920,983.32 and 361,457.25 is: 498,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,377.24 : 920,983.32 = 361,457.25 : x
  2. Step 2: Convert to fraction form
    667,377.24/920,983.32 = 361,457.25/x
  3. Step 3: Cross multiply
    667,377.24x = 920,983.32 × 361,457.25
  4. Step 4: Simplify right side
    667,377.24x = 332,896,098,143.07
  5. Step 5: Solve for x
    x = 332,896,098,143.07/667,377.24
  6. Step 6: Final answer
    x = 498,812.48

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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.