Home / 728,864.88-1,092,542.76-354,422.64

Finding the Fourth Proportional to 728,864.88, 1,092,542.76 and 354,422.64

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Solution

The fourth proportional to 728,864.88, 1,092,542.76 and 354,422.64 is: 531,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,864.88 : 1,092,542.76 = 354,422.64 : x
  2. Step 2: Convert to fraction form
    728,864.88/1,092,542.76 = 354,422.64/x
  3. Step 3: Cross multiply
    728,864.88x = 1,092,542.76 × 354,422.64
  4. Step 4: Simplify right side
    728,864.88x = 387,221,889,312.09
  5. Step 5: Solve for x
    x = 387,221,889,312.09/728,864.88
  6. Step 6: Final answer
    x = 531,267.04

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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.