Home / 725,548.88-1,088,691.96-326,109.20

Finding the Fourth Proportional to 725,548.88, 1,088,691.96 and 326,109.20

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Solution

The fourth proportional to 725,548.88, 1,088,691.96 and 326,109.20 is: 489,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,548.88 : 1,088,691.96 = 326,109.20 : x
  2. Step 2: Convert to fraction form
    725,548.88/1,088,691.96 = 326,109.20/x
  3. Step 3: Cross multiply
    725,548.88x = 1,088,691.96 × 326,109.20
  4. Step 4: Simplify right side
    725,548.88x = 355,032,464,122.03
  5. Step 5: Solve for x
    x = 355,032,464,122.03/725,548.88
  6. Step 6: Final answer
    x = 489,329.49

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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.