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Finding the Fourth Proportional to 492,278.29, 679,343.97 and 277,426.05

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Solution

The fourth proportional to 492,278.29, 679,343.97 and 277,426.05 is: 382,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,278.29 : 679,343.97 = 277,426.05 : x
  2. Step 2: Convert to fraction form
    492,278.29/679,343.97 = 277,426.05/x
  3. Step 3: Cross multiply
    492,278.29x = 679,343.97 × 277,426.05
  4. Step 4: Simplify right side
    492,278.29x = 188,467,714,188.42
  5. Step 5: Solve for x
    x = 188,467,714,188.42/492,278.29
  6. Step 6: Final answer
    x = 382,847.91

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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.