Home / 987,639.35-1,363,053.29-557,947.31

Finding the Fourth Proportional to 987,639.35, 1,363,053.29 and 557,947.31

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Solution

The fourth proportional to 987,639.35, 1,363,053.29 and 557,947.31 is: 770,029.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,639.35 : 1,363,053.29 = 557,947.31 : x
  2. Step 2: Convert to fraction form
    987,639.35/1,363,053.29 = 557,947.31/x
  3. Step 3: Cross multiply
    987,639.35x = 1,363,053.29 × 557,947.31
  4. Step 4: Simplify right side
    987,639.35x = 760,511,906,937.15
  5. Step 5: Solve for x
    x = 760,511,906,937.15/987,639.35
  6. Step 6: Final answer
    x = 770,029.98

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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.