Home / 847,375.74-1,271,277.45-398,013.66

Finding the Fourth Proportional to 847,375.74, 1,271,277.45 and 398,013.66

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Solution

The fourth proportional to 847,375.74, 1,271,277.45 and 398,013.66 is: 597,120.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,375.74 : 1,271,277.45 = 398,013.66 : x
  2. Step 2: Convert to fraction form
    847,375.74/1,271,277.45 = 398,013.66/x
  3. Step 3: Cross multiply
    847,375.74x = 1,271,277.45 × 398,013.66
  4. Step 4: Simplify right side
    847,375.74x = 505,985,790,749.97
  5. Step 5: Solve for x
    x = 505,985,790,749.97/847,375.74
  6. Step 6: Final answer
    x = 597,120.93

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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.