Home / 857,310.55-1,285,161.22-288,293.79

Finding the Fourth Proportional to 857,310.55, 1,285,161.22 and 288,293.79

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Solution

The fourth proportional to 857,310.55, 1,285,161.22 and 288,293.79 is: 432,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,310.55 : 1,285,161.22 = 288,293.79 : x
  2. Step 2: Convert to fraction form
    857,310.55/1,285,161.22 = 288,293.79/x
  3. Step 3: Cross multiply
    857,310.55x = 1,285,161.22 × 288,293.79
  4. Step 4: Simplify right side
    857,310.55x = 370,503,998,874.82
  5. Step 5: Solve for x
    x = 370,503,998,874.82/857,310.55
  6. Step 6: Final answer
    x = 432,170.11

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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.