Home / 725,415.30-1,087,794.90-325,850.40

Finding the Fourth Proportional to 725,415.30, 1,087,794.90 and 325,850.40

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Solution

The fourth proportional to 725,415.30, 1,087,794.90 and 325,850.40 is: 488,628.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,415.30 : 1,087,794.90 = 325,850.40 : x
  2. Step 2: Convert to fraction form
    725,415.30/1,087,794.90 = 325,850.40/x
  3. Step 3: Cross multiply
    725,415.30x = 1,087,794.90 × 325,850.40
  4. Step 4: Simplify right side
    725,415.30x = 354,458,403,282.96
  5. Step 5: Solve for x
    x = 354,458,403,282.96/725,415.30
  6. Step 6: Final answer
    x = 488,628.24

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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.