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Finding the Fourth Proportional to 494,470.04, 682,382.12 and 279,642.24

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Solution

The fourth proportional to 494,470.04, 682,382.12 and 279,642.24 is: 385,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,470.04 : 682,382.12 = 279,642.24 : x
  2. Step 2: Convert to fraction form
    494,470.04/682,382.12 = 279,642.24/x
  3. Step 3: Cross multiply
    494,470.04x = 682,382.12 × 279,642.24
  4. Step 4: Simplify right side
    494,470.04x = 190,822,864,572.75
  5. Step 5: Solve for x
    x = 190,822,864,572.75/494,470.04
  6. Step 6: Final answer
    x = 385,913.91

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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.