Home / 725,156.52-1,087,361.28-325,454.64

Finding the Fourth Proportional to 725,156.52, 1,087,361.28 and 325,454.64

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Solution

The fourth proportional to 725,156.52, 1,087,361.28 and 325,454.64 is: 488,014.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,156.52 : 1,087,361.28 = 325,454.64 : x
  2. Step 2: Convert to fraction form
    725,156.52/1,087,361.28 = 325,454.64/x
  3. Step 3: Cross multiply
    725,156.52x = 1,087,361.28 × 325,454.64
  4. Step 4: Simplify right side
    725,156.52x = 353,886,773,932.34
  5. Step 5: Solve for x
    x = 353,886,773,932.34/725,156.52
  6. Step 6: Final answer
    x = 488,014.33

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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.