Home / 766,774.74-1,058,209.98-422,671.86

Finding the Fourth Proportional to 766,774.74, 1,058,209.98 and 422,671.86

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Solution

The fourth proportional to 766,774.74, 1,058,209.98 and 422,671.86 is: 583,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,774.74 : 1,058,209.98 = 422,671.86 : x
  2. Step 2: Convert to fraction form
    766,774.74/1,058,209.98 = 422,671.86/x
  3. Step 3: Cross multiply
    766,774.74x = 1,058,209.98 × 422,671.86
  4. Step 4: Simplify right side
    766,774.74x = 447,275,580,517.16
  5. Step 5: Solve for x
    x = 447,275,580,517.16/766,774.74
  6. Step 6: Final answer
    x = 583,320.70

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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.