Home / 987,552.80-1,362,906.78-557,911.80

Finding the Fourth Proportional to 987,552.80, 1,362,906.78 and 557,911.80

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Solution

The fourth proportional to 987,552.80, 1,362,906.78 and 557,911.80 is: 769,965.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,552.80 : 1,362,906.78 = 557,911.80 : x
  2. Step 2: Convert to fraction form
    987,552.80/1,362,906.78 = 557,911.80/x
  3. Step 3: Cross multiply
    987,552.80x = 1,362,906.78 × 557,911.80
  4. Step 4: Simplify right side
    987,552.80x = 760,381,774,862.00
  5. Step 5: Solve for x
    x = 760,381,774,862.00/987,552.80
  6. Step 6: Final answer
    x = 769,965.69

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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.