Home / 854,422.43-1,280,512.50-628,726.05

Finding the Fourth Proportional to 854,422.43, 1,280,512.50 and 628,726.05

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Solution

The fourth proportional to 854,422.43, 1,280,512.50 and 628,726.05 is: 942,264.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,422.43 : 1,280,512.50 = 628,726.05 : x
  2. Step 2: Convert to fraction form
    854,422.43/1,280,512.50 = 628,726.05/x
  3. Step 3: Cross multiply
    854,422.43x = 1,280,512.50 × 628,726.05
  4. Step 4: Simplify right side
    854,422.43x = 805,091,563,742.90
  5. Step 5: Solve for x
    x = 805,091,563,742.90/854,422.43
  6. Step 6: Final answer
    x = 942,264.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.