Home / 494,027.54-681,680.51-287,341.66

Finding the Fourth Proportional to 494,027.54, 681,680.51 and 287,341.66

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Solution

The fourth proportional to 494,027.54, 681,680.51 and 287,341.66 is: 396,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,027.54 : 681,680.51 = 287,341.66 : x
  2. Step 2: Convert to fraction form
    494,027.54/681,680.51 = 287,341.66/x
  3. Step 3: Cross multiply
    494,027.54x = 681,680.51 × 287,341.66
  4. Step 4: Simplify right side
    494,027.54x = 195,875,209,825.97
  5. Step 5: Solve for x
    x = 195,875,209,825.97/494,027.54
  6. Step 6: Final answer
    x = 396,486.42

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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.