Home / 687,176.39-948,271.42-381,249.52

Finding the Fourth Proportional to 687,176.39, 948,271.42 and 381,249.52

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Solution

The fourth proportional to 687,176.39, 948,271.42 and 381,249.52 is: 526,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,176.39 : 948,271.42 = 381,249.52 : x
  2. Step 2: Convert to fraction form
    687,176.39/948,271.42 = 381,249.52/x
  3. Step 3: Cross multiply
    687,176.39x = 948,271.42 × 381,249.52
  4. Step 4: Simplify right side
    687,176.39x = 361,528,023,704.72
  5. Step 5: Solve for x
    x = 361,528,023,704.72/687,176.39
  6. Step 6: Final answer
    x = 526,106.58

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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.