Home / 1,309,402.28-1,964,583.20-551,434.57

Finding the Fourth Proportional to 1,309,402.28, 1,964,583.20 and 551,434.57

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Solution

The fourth proportional to 1,309,402.28, 1,964,583.20 and 551,434.57 is: 827,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,402.28 : 1,964,583.20 = 551,434.57 : x
  2. Step 2: Convert to fraction form
    1,309,402.28/1,964,583.20 = 551,434.57/x
  3. Step 3: Cross multiply
    1,309,402.28x = 1,964,583.20 × 551,434.57
  4. Step 4: Simplify right side
    1,309,402.28x = 1,083,339,092,121.22
  5. Step 5: Solve for x
    x = 1,083,339,092,121.22/1,309,402.28
  6. Step 6: Final answer
    x = 827,353.91

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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.