Home / 892,540.70-1,231,398.28-570,439.34

Finding the Fourth Proportional to 892,540.70, 1,231,398.28 and 570,439.34

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Solution

The fourth proportional to 892,540.70, 1,231,398.28 and 570,439.34 is: 787,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,540.70 : 1,231,398.28 = 570,439.34 : x
  2. Step 2: Convert to fraction form
    892,540.70/1,231,398.28 = 570,439.34/x
  3. Step 3: Cross multiply
    892,540.70x = 1,231,398.28 × 570,439.34
  4. Step 4: Simplify right side
    892,540.70x = 702,438,022,120.34
  5. Step 5: Solve for x
    x = 702,438,022,120.34/892,540.70
  6. Step 6: Final answer
    x = 787,009.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.