Home / 728,345.73-1,092,961.47-307,621.61

Finding the Fourth Proportional to 728,345.73, 1,092,961.47 and 307,621.61

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Solution

The fourth proportional to 728,345.73, 1,092,961.47 and 307,621.61 is: 461,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,345.73 : 1,092,961.47 = 307,621.61 : x
  2. Step 2: Convert to fraction form
    728,345.73/1,092,961.47 = 307,621.61/x
  3. Step 3: Cross multiply
    728,345.73x = 1,092,961.47 × 307,621.61
  4. Step 4: Simplify right side
    728,345.73x = 336,218,561,604.56
  5. Step 5: Solve for x
    x = 336,218,561,604.56/728,345.73
  6. Step 6: Final answer
    x = 461,619.46

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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.