Home / 687,109.26-1,030,669.38-282,197.14

Finding the Fourth Proportional to 687,109.26, 1,030,669.38 and 282,197.14

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Solution

The fourth proportional to 687,109.26, 1,030,669.38 and 282,197.14 is: 423,297.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,109.26 : 1,030,669.38 = 282,197.14 : x
  2. Step 2: Convert to fraction form
    687,109.26/1,030,669.38 = 282,197.14/x
  3. Step 3: Cross multiply
    687,109.26x = 1,030,669.38 × 282,197.14
  4. Step 4: Simplify right side
    687,109.26x = 290,851,951,321.57
  5. Step 5: Solve for x
    x = 290,851,951,321.57/687,109.26
  6. Step 6: Final answer
    x = 423,297.96

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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.