Home / 687,924.29-949,422.92-415,994.06

Finding the Fourth Proportional to 687,924.29, 949,422.92 and 415,994.06

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Solution

The fourth proportional to 687,924.29, 949,422.92 and 415,994.06 is: 574,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,924.29 : 949,422.92 = 415,994.06 : x
  2. Step 2: Convert to fraction form
    687,924.29/949,422.92 = 415,994.06/x
  3. Step 3: Cross multiply
    687,924.29x = 949,422.92 × 415,994.06
  4. Step 4: Simplify right side
    687,924.29x = 394,954,291,440.73
  5. Step 5: Solve for x
    x = 394,954,291,440.73/687,924.29
  6. Step 6: Final answer
    x = 574,124.65

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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.