Home / 987,603.22-1,363,003.37-557,911.18

Finding the Fourth Proportional to 987,603.22, 1,363,003.37 and 557,911.18

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Solution

The fourth proportional to 987,603.22, 1,363,003.37 and 557,911.18 is: 769,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,603.22 : 1,363,003.37 = 557,911.18 : x
  2. Step 2: Convert to fraction form
    987,603.22/1,363,003.37 = 557,911.18/x
  3. Step 3: Cross multiply
    987,603.22x = 1,363,003.37 × 557,911.18
  4. Step 4: Simplify right side
    987,603.22x = 760,434,818,500.68
  5. Step 5: Solve for x
    x = 760,434,818,500.68/987,603.22
  6. Step 6: Final answer
    x = 769,980.09

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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.