Home / 852,281.92-1,278,090.64-319,512.25

Finding the Fourth Proportional to 852,281.92, 1,278,090.64 and 319,512.25

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Solution

The fourth proportional to 852,281.92, 1,278,090.64 and 319,512.25 is: 479,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,281.92 : 1,278,090.64 = 319,512.25 : x
  2. Step 2: Convert to fraction form
    852,281.92/1,278,090.64 = 319,512.25/x
  3. Step 3: Cross multiply
    852,281.92x = 1,278,090.64 × 319,512.25
  4. Step 4: Simplify right side
    852,281.92x = 408,365,616,090.34
  5. Step 5: Solve for x
    x = 408,365,616,090.34/852,281.92
  6. Step 6: Final answer
    x = 479,143.82

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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.