Home / 842,873.54-1,264,099.85-330,642.78

Finding the Fourth Proportional to 842,873.54, 1,264,099.85 and 330,642.78

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Solution

The fourth proportional to 842,873.54, 1,264,099.85 and 330,642.78 is: 495,881.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,873.54 : 1,264,099.85 = 330,642.78 : x
  2. Step 2: Convert to fraction form
    842,873.54/1,264,099.85 = 330,642.78/x
  3. Step 3: Cross multiply
    842,873.54x = 1,264,099.85 × 330,642.78
  4. Step 4: Simplify right side
    842,873.54x = 417,965,486,948.37
  5. Step 5: Solve for x
    x = 417,965,486,948.37/842,873.54
  6. Step 6: Final answer
    x = 495,881.61

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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.