Home / 728,833.10-1,092,921.60-279,404.60

Finding the Fourth Proportional to 728,833.10, 1,092,921.60 and 279,404.60

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Solution

The fourth proportional to 728,833.10, 1,092,921.60 and 279,404.60 is: 418,981.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,833.10 : 1,092,921.60 = 279,404.60 : x
  2. Step 2: Convert to fraction form
    728,833.10/1,092,921.60 = 279,404.60/x
  3. Step 3: Cross multiply
    728,833.10x = 1,092,921.60 × 279,404.60
  4. Step 4: Simplify right side
    728,833.10x = 305,367,322,479.36
  5. Step 5: Solve for x
    x = 305,367,322,479.36/728,833.10
  6. Step 6: Final answer
    x = 418,981.14

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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.