Home / 711,872.21-982,370.52-389,575.85

Finding the Fourth Proportional to 711,872.21, 982,370.52 and 389,575.85

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Solution

The fourth proportional to 711,872.21, 982,370.52 and 389,575.85 is: 537,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,872.21 : 982,370.52 = 389,575.85 : x
  2. Step 2: Convert to fraction form
    711,872.21/982,370.52 = 389,575.85/x
  3. Step 3: Cross multiply
    711,872.21x = 982,370.52 × 389,575.85
  4. Step 4: Simplify right side
    711,872.21x = 382,707,825,432.09
  5. Step 5: Solve for x
    x = 382,707,825,432.09/711,872.21
  6. Step 6: Final answer
    x = 537,607.48

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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.