Home / 987,801.30-1,363,162.86-558,081.27

Finding the Fourth Proportional to 987,801.30, 1,363,162.86 and 558,081.27

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Solution

The fourth proportional to 987,801.30, 1,363,162.86 and 558,081.27 is: 770,150.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,801.30 : 1,363,162.86 = 558,081.27 : x
  2. Step 2: Convert to fraction form
    987,801.30/1,363,162.86 = 558,081.27/x
  3. Step 3: Cross multiply
    987,801.30x = 1,363,162.86 × 558,081.27
  4. Step 4: Simplify right side
    987,801.30x = 760,755,660,125.63
  5. Step 5: Solve for x
    x = 760,755,660,125.63/987,801.30
  6. Step 6: Final answer
    x = 770,150.49

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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.