Home / 885,559.80-1,328,339.70-254,436.60

Finding the Fourth Proportional to 885,559.80, 1,328,339.70 and 254,436.60

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Solution

The fourth proportional to 885,559.80, 1,328,339.70 and 254,436.60 is: 381,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,559.80 : 1,328,339.70 = 254,436.60 : x
  2. Step 2: Convert to fraction form
    885,559.80/1,328,339.70 = 254,436.60/x
  3. Step 3: Cross multiply
    885,559.80x = 1,328,339.70 × 254,436.60
  4. Step 4: Simplify right side
    885,559.80x = 337,978,236,913.02
  5. Step 5: Solve for x
    x = 337,978,236,913.02/885,559.80
  6. Step 6: Final answer
    x = 381,654.90

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Double scale
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Similar ratio
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1.5x scale

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.