Home / 728,959.32-1,005,964.29-406,669.41

Finding the Fourth Proportional to 728,959.32, 1,005,964.29 and 406,669.41

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Solution

The fourth proportional to 728,959.32, 1,005,964.29 and 406,669.41 is: 561,204.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,959.32 : 1,005,964.29 = 406,669.41 : x
  2. Step 2: Convert to fraction form
    728,959.32/1,005,964.29 = 406,669.41/x
  3. Step 3: Cross multiply
    728,959.32x = 1,005,964.29 × 406,669.41
  4. Step 4: Simplify right side
    728,959.32x = 409,094,904,295.37
  5. Step 5: Solve for x
    x = 409,094,904,295.37/728,959.32
  6. Step 6: Final answer
    x = 561,204.02

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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.