Home / 725,416.80-1,087,797.15-325,851.90

Finding the Fourth Proportional to 725,416.80, 1,087,797.15 and 325,851.90

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Solution

The fourth proportional to 725,416.80, 1,087,797.15 and 325,851.90 is: 488,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,416.80 : 1,087,797.15 = 325,851.90 : x
  2. Step 2: Convert to fraction form
    725,416.80/1,087,797.15 = 325,851.90/x
  3. Step 3: Cross multiply
    725,416.80x = 1,087,797.15 × 325,851.90
  4. Step 4: Simplify right side
    725,416.80x = 354,460,768,142.09
  5. Step 5: Solve for x
    x = 354,460,768,142.09/725,416.80
  6. Step 6: Final answer
    x = 488,630.49

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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.