Home / 987,636.74-1,363,049.30-557,944.54

Finding the Fourth Proportional to 987,636.74, 1,363,049.30 and 557,944.54

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Solution

The fourth proportional to 987,636.74, 1,363,049.30 and 557,944.54 is: 770,025.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,636.74 : 1,363,049.30 = 557,944.54 : x
  2. Step 2: Convert to fraction form
    987,636.74/1,363,049.30 = 557,944.54/x
  3. Step 3: Cross multiply
    987,636.74x = 1,363,049.30 × 557,944.54
  4. Step 4: Simplify right side
    987,636.74x = 760,505,914,685.82
  5. Step 5: Solve for x
    x = 760,505,914,685.82/987,636.74
  6. Step 6: Final answer
    x = 770,025.95

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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.