Home / 986,072.67-1,479,948.30-387,452.43

Finding the Fourth Proportional to 986,072.67, 1,479,948.30 and 387,452.43

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Solution

The fourth proportional to 986,072.67, 1,479,948.30 and 387,452.43 is: 581,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,072.67 : 1,479,948.30 = 387,452.43 : x
  2. Step 2: Convert to fraction form
    986,072.67/1,479,948.30 = 387,452.43/x
  3. Step 3: Cross multiply
    986,072.67x = 1,479,948.30 × 387,452.43
  4. Step 4: Simplify right side
    986,072.67x = 573,409,565,109.37
  5. Step 5: Solve for x
    x = 573,409,565,109.37/986,072.67
  6. Step 6: Final answer
    x = 581,508.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.