Home / 687,033.32-948,111.25-376,933.88

Finding the Fourth Proportional to 687,033.32, 948,111.25 and 376,933.88

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Solution

The fourth proportional to 687,033.32, 948,111.25 and 376,933.88 is: 520,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,033.32 : 948,111.25 = 376,933.88 : x
  2. Step 2: Convert to fraction form
    687,033.32/948,111.25 = 376,933.88/x
  3. Step 3: Cross multiply
    687,033.32x = 948,111.25 × 376,933.88
  4. Step 4: Simplify right side
    687,033.32x = 357,375,248,821.54
  5. Step 5: Solve for x
    x = 357,375,248,821.54/687,033.32
  6. Step 6: Final answer
    x = 520,171.64

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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.