Home / 687,515.28-948,763.89-381,594.30

Finding the Fourth Proportional to 687,515.28, 948,763.89 and 381,594.30

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Solution

The fourth proportional to 687,515.28, 948,763.89 and 381,594.30 is: 526,596.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,515.28 : 948,763.89 = 381,594.30 : x
  2. Step 2: Convert to fraction form
    687,515.28/948,763.89 = 381,594.30/x
  3. Step 3: Cross multiply
    687,515.28x = 948,763.89 × 381,594.30
  4. Step 4: Simplify right side
    687,515.28x = 362,042,892,469.83
  5. Step 5: Solve for x
    x = 362,042,892,469.83/687,515.28
  6. Step 6: Final answer
    x = 526,596.14

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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.