Home / 492,781.24-680,039.10-266,426.74

Finding the Fourth Proportional to 492,781.24, 680,039.10 and 266,426.74

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Solution

The fourth proportional to 492,781.24, 680,039.10 and 266,426.74 is: 367,669.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,781.24 : 680,039.10 = 266,426.74 : x
  2. Step 2: Convert to fraction form
    492,781.24/680,039.10 = 266,426.74/x
  3. Step 3: Cross multiply
    492,781.24x = 680,039.10 × 266,426.74
  4. Step 4: Simplify right side
    492,781.24x = 181,180,595,753.21
  5. Step 5: Solve for x
    x = 181,180,595,753.21/492,781.24
  6. Step 6: Final answer
    x = 367,669.43

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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.