Home / 725,188.28-1,087,408.56-325,486.40

Finding the Fourth Proportional to 725,188.28, 1,087,408.56 and 325,486.40

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Solution

The fourth proportional to 725,188.28, 1,087,408.56 and 325,486.40 is: 488,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,188.28 : 1,087,408.56 = 325,486.40 : x
  2. Step 2: Convert to fraction form
    725,188.28/1,087,408.56 = 325,486.40/x
  3. Step 3: Cross multiply
    725,188.28x = 1,087,408.56 × 325,486.40
  4. Step 4: Simplify right side
    725,188.28x = 353,936,697,523.58
  5. Step 5: Solve for x
    x = 353,936,697,523.58/725,188.28
  6. Step 6: Final answer
    x = 488,061.80

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1.5x scale

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.