Home / 805,412.82-1,207,364.70-272,560.80

Finding the Fourth Proportional to 805,412.82, 1,207,364.70 and 272,560.80

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Solution

The fourth proportional to 805,412.82, 1,207,364.70 and 272,560.80 is: 408,585.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,412.82 : 1,207,364.70 = 272,560.80 : x
  2. Step 2: Convert to fraction form
    805,412.82/1,207,364.70 = 272,560.80/x
  3. Step 3: Cross multiply
    805,412.82x = 1,207,364.70 × 272,560.80
  4. Step 4: Simplify right side
    805,412.82x = 329,080,288,523.76
  5. Step 5: Solve for x
    x = 329,080,288,523.76/805,412.82
  6. Step 6: Final answer
    x = 408,585.86

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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.