Home / 987,602.22-1,363,001.99-557,910.18

Finding the Fourth Proportional to 987,602.22, 1,363,001.99 and 557,910.18

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Solution

The fourth proportional to 987,602.22, 1,363,001.99 and 557,910.18 is: 769,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,602.22 : 1,363,001.99 = 557,910.18 : x
  2. Step 2: Convert to fraction form
    987,602.22/1,363,001.99 = 557,910.18/x
  3. Step 3: Cross multiply
    987,602.22x = 1,363,001.99 × 557,910.18
  4. Step 4: Simplify right side
    987,602.22x = 760,432,682,791.71
  5. Step 5: Solve for x
    x = 760,432,682,791.71/987,602.22
  6. Step 6: Final answer
    x = 769,978.71

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1.5x scale

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.