Home / 854,563.88-1,280,724.54-628,867.88

Finding the Fourth Proportional to 854,563.88, 1,280,724.54 and 628,867.88

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Solution

The fourth proportional to 854,563.88, 1,280,724.54 and 628,867.88 is: 942,476.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,563.88 : 1,280,724.54 = 628,867.88 : x
  2. Step 2: Convert to fraction form
    854,563.88/1,280,724.54 = 628,867.88/x
  3. Step 3: Cross multiply
    854,563.88x = 1,280,724.54 × 628,867.88
  4. Step 4: Simplify right side
    854,563.88x = 805,406,526,333.78
  5. Step 5: Solve for x
    x = 805,406,526,333.78/854,563.88
  6. Step 6: Final answer
    x = 942,476.68

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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.