Home / 687,595.37-948,834.05-381,647.66

Finding the Fourth Proportional to 687,595.37, 948,834.05 and 381,647.66

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Solution

The fourth proportional to 687,595.37, 948,834.05 and 381,647.66 is: 526,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,595.37 : 948,834.05 = 381,647.66 : x
  2. Step 2: Convert to fraction form
    687,595.37/948,834.05 = 381,647.66/x
  3. Step 3: Cross multiply
    687,595.37x = 948,834.05 × 381,647.66
  4. Step 4: Simplify right side
    687,595.37x = 362,120,288,258.42
  5. Step 5: Solve for x
    x = 362,120,288,258.42/687,595.37
  6. Step 6: Final answer
    x = 526,647.37

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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.