Home / 766,938.66-1,058,382.50-422,787.78

Finding the Fourth Proportional to 766,938.66, 1,058,382.50 and 422,787.78

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Solution

The fourth proportional to 766,938.66, 1,058,382.50 and 422,787.78 is: 583,451.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,938.66 : 1,058,382.50 = 422,787.78 : x
  2. Step 2: Convert to fraction form
    766,938.66/1,058,382.50 = 422,787.78/x
  3. Step 3: Cross multiply
    766,938.66x = 1,058,382.50 × 422,787.78
  4. Step 4: Simplify right side
    766,938.66x = 447,471,185,451.91
  5. Step 5: Solve for x
    x = 447,471,185,451.91/766,938.66
  6. Step 6: Final answer
    x = 583,451.07

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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.