Home / 728,843.54-1,005,797.16-402,159.47

Finding the Fourth Proportional to 728,843.54, 1,005,797.16 and 402,159.47

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Solution

The fourth proportional to 728,843.54, 1,005,797.16 and 402,159.47 is: 554,976.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,843.54 : 1,005,797.16 = 402,159.47 : x
  2. Step 2: Convert to fraction form
    728,843.54/1,005,797.16 = 402,159.47/x
  3. Step 3: Cross multiply
    728,843.54x = 1,005,797.16 × 402,159.47
  4. Step 4: Simplify right side
    728,843.54x = 404,490,847,764.12
  5. Step 5: Solve for x
    x = 404,490,847,764.12/728,843.54
  6. Step 6: Final answer
    x = 554,976.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.