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Finding the Fourth Proportional to 702,633.32, 969,634.56 and 380,342.42

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Solution

The fourth proportional to 702,633.32, 969,634.56 and 380,342.42 is: 524,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,633.32 : 969,634.56 = 380,342.42 : x
  2. Step 2: Convert to fraction form
    702,633.32/969,634.56 = 380,342.42/x
  3. Step 3: Cross multiply
    702,633.32x = 969,634.56 × 380,342.42
  4. Step 4: Simplify right side
    702,633.32x = 368,793,150,217.86
  5. Step 5: Solve for x
    x = 368,793,150,217.86/702,633.32
  6. Step 6: Final answer
    x = 524,872.85

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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.