Home / 766,849.10-1,058,246.49-422,685.32

Finding the Fourth Proportional to 766,849.10, 1,058,246.49 and 422,685.32

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Solution

The fourth proportional to 766,849.10, 1,058,246.49 and 422,685.32 is: 583,302.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,849.10 : 1,058,246.49 = 422,685.32 : x
  2. Step 2: Convert to fraction form
    766,849.10/1,058,246.49 = 422,685.32/x
  3. Step 3: Cross multiply
    766,849.10x = 1,058,246.49 × 422,685.32
  4. Step 4: Simplify right side
    766,849.10x = 447,305,256,264.53
  5. Step 5: Solve for x
    x = 447,305,256,264.53/766,849.10
  6. Step 6: Final answer
    x = 583,302.84

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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.