Home / 720,916.91-1,081,449.33-272,015.52

Finding the Fourth Proportional to 720,916.91, 1,081,449.33 and 272,015.52

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Solution

The fourth proportional to 720,916.91, 1,081,449.33 and 272,015.52 is: 408,051.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,916.91 : 1,081,449.33 = 272,015.52 : x
  2. Step 2: Convert to fraction form
    720,916.91/1,081,449.33 = 272,015.52/x
  3. Step 3: Cross multiply
    720,916.91x = 1,081,449.33 × 272,015.52
  4. Step 4: Simplify right side
    720,916.91x = 294,170,996,778.11
  5. Step 5: Solve for x
    x = 294,170,996,778.11/720,916.91
  6. Step 6: Final answer
    x = 408,051.18

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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.