Home / 854,456.18-1,280,563.02-628,759.80

Finding the Fourth Proportional to 854,456.18, 1,280,563.02 and 628,759.80

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Solution

The fourth proportional to 854,456.18, 1,280,563.02 and 628,759.80 is: 942,314.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,456.18 : 1,280,563.02 = 628,759.80 : x
  2. Step 2: Convert to fraction form
    854,456.18/1,280,563.02 = 628,759.80/x
  3. Step 3: Cross multiply
    854,456.18x = 1,280,563.02 × 628,759.80
  4. Step 4: Simplify right side
    854,456.18x = 805,166,548,342.60
  5. Step 5: Solve for x
    x = 805,166,548,342.60/854,456.18
  6. Step 6: Final answer
    x = 942,314.62

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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.