Home / 856,876.46-1,182,443.81-494,278.61

Finding the Fourth Proportional to 856,876.46, 1,182,443.81 and 494,278.61

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Solution

The fourth proportional to 856,876.46, 1,182,443.81 and 494,278.61 is: 682,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,876.46 : 1,182,443.81 = 494,278.61 : x
  2. Step 2: Convert to fraction form
    856,876.46/1,182,443.81 = 494,278.61/x
  3. Step 3: Cross multiply
    856,876.46x = 1,182,443.81 × 494,278.61
  4. Step 4: Simplify right side
    856,876.46x = 584,456,674,426.29
  5. Step 5: Solve for x
    x = 584,456,674,426.29/856,876.46
  6. Step 6: Final answer
    x = 682,078.11

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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.