Home / 728,051.60-1,092,077.40-254,784.80

Finding the Fourth Proportional to 728,051.60, 1,092,077.40 and 254,784.80

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Solution

The fourth proportional to 728,051.60, 1,092,077.40 and 254,784.80 is: 382,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,051.60 : 1,092,077.40 = 254,784.80 : x
  2. Step 2: Convert to fraction form
    728,051.60/1,092,077.40 = 254,784.80/x
  3. Step 3: Cross multiply
    728,051.60x = 1,092,077.40 × 254,784.80
  4. Step 4: Simplify right side
    728,051.60x = 278,244,721,943.52
  5. Step 5: Solve for x
    x = 278,244,721,943.52/728,051.60
  6. Step 6: Final answer
    x = 382,177.20

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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.