Home / 728,076.40-1,092,114.60-307,826.80

Finding the Fourth Proportional to 728,076.40, 1,092,114.60 and 307,826.80

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Solution

The fourth proportional to 728,076.40, 1,092,114.60 and 307,826.80 is: 461,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,076.40 : 1,092,114.60 = 307,826.80 : x
  2. Step 2: Convert to fraction form
    728,076.40/1,092,114.60 = 307,826.80/x
  3. Step 3: Cross multiply
    728,076.40x = 1,092,114.60 × 307,826.80
  4. Step 4: Simplify right side
    728,076.40x = 336,182,142,551.28
  5. Step 5: Solve for x
    x = 336,182,142,551.28/728,076.40
  6. Step 6: Final answer
    x = 461,740.20

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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.