Home / 805,221.12-1,207,080.78-272,371.38

Finding the Fourth Proportional to 805,221.12, 1,207,080.78 and 272,371.38

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Solution

The fourth proportional to 805,221.12, 1,207,080.78 and 272,371.38 is: 408,303.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,221.12 : 1,207,080.78 = 272,371.38 : x
  2. Step 2: Convert to fraction form
    805,221.12/1,207,080.78 = 272,371.38/x
  3. Step 3: Cross multiply
    805,221.12x = 1,207,080.78 × 272,371.38
  4. Step 4: Simplify right side
    805,221.12x = 328,774,257,820.08
  5. Step 5: Solve for x
    x = 328,774,257,820.08/805,221.12
  6. Step 6: Final answer
    x = 408,303.07

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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.