Home / 715,645.85-1,073,302.61-210,071.05

Finding the Fourth Proportional to 715,645.85, 1,073,302.61 and 210,071.05

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Solution

The fourth proportional to 715,645.85, 1,073,302.61 and 210,071.05 is: 315,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,645.85 : 1,073,302.61 = 210,071.05 : x
  2. Step 2: Convert to fraction form
    715,645.85/1,073,302.61 = 210,071.05/x
  3. Step 3: Cross multiply
    715,645.85x = 1,073,302.61 × 210,071.05
  4. Step 4: Simplify right side
    715,645.85x = 225,469,799,833.57
  5. Step 5: Solve for x
    x = 225,469,799,833.57/715,645.85
  6. Step 6: Final answer
    x = 315,057.79

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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.