Home / 728,548.55-1,092,824.87-255,123.18

Finding the Fourth Proportional to 728,548.55, 1,092,824.87 and 255,123.18

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Solution

The fourth proportional to 728,548.55, 1,092,824.87 and 255,123.18 is: 382,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,548.55 : 1,092,824.87 = 255,123.18 : x
  2. Step 2: Convert to fraction form
    728,548.55/1,092,824.87 = 255,123.18/x
  3. Step 3: Cross multiply
    728,548.55x = 1,092,824.87 × 255,123.18
  4. Step 4: Simplify right side
    728,548.55x = 278,804,954,741.87
  5. Step 5: Solve for x
    x = 278,804,954,741.87/728,548.55
  6. Step 6: Final answer
    x = 382,685.49

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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.