Home / 987,604.22-1,363,004.75-557,912.18

Finding the Fourth Proportional to 987,604.22, 1,363,004.75 and 557,912.18

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Solution

The fourth proportional to 987,604.22, 1,363,004.75 and 557,912.18 is: 769,981.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,604.22 : 1,363,004.75 = 557,912.18 : x
  2. Step 2: Convert to fraction form
    987,604.22/1,363,004.75 = 557,912.18/x
  3. Step 3: Cross multiply
    987,604.22x = 1,363,004.75 × 557,912.18
  4. Step 4: Simplify right side
    987,604.22x = 760,436,951,422.86
  5. Step 5: Solve for x
    x = 760,436,951,422.86/987,604.22
  6. Step 6: Final answer
    x = 769,981.47

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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.