Home / 725,387.94-1,088,199.72-219,830.58

Finding the Fourth Proportional to 725,387.94, 1,088,199.72 and 219,830.58

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Solution

The fourth proportional to 725,387.94, 1,088,199.72 and 219,830.58 is: 329,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,387.94 : 1,088,199.72 = 219,830.58 : x
  2. Step 2: Convert to fraction form
    725,387.94/1,088,199.72 = 219,830.58/x
  3. Step 3: Cross multiply
    725,387.94x = 1,088,199.72 × 219,830.58
  4. Step 4: Simplify right side
    725,387.94x = 239,219,575,603.44
  5. Step 5: Solve for x
    x = 239,219,575,603.44/725,387.94
  6. Step 6: Final answer
    x = 329,781.57

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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.