Home / 687,296.74-948,423.92-381,353.73

Finding the Fourth Proportional to 687,296.74, 948,423.92 and 381,353.73

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Solution

The fourth proportional to 687,296.74, 948,423.92 and 381,353.73 is: 526,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,296.74 : 948,423.92 = 381,353.73 : x
  2. Step 2: Convert to fraction form
    687,296.74/948,423.92 = 381,353.73/x
  3. Step 3: Cross multiply
    687,296.74x = 948,423.92 × 381,353.73
  4. Step 4: Simplify right side
    687,296.74x = 361,684,994,771.10
  5. Step 5: Solve for x
    x = 361,684,994,771.10/687,296.74
  6. Step 6: Final answer
    x = 526,242.85

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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.