Home / 986,788.24-1,361,758.08-557,059.12

Finding the Fourth Proportional to 986,788.24, 1,361,758.08 and 557,059.12

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Solution

The fourth proportional to 986,788.24, 1,361,758.08 and 557,059.12 is: 768,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,788.24 : 1,361,758.08 = 557,059.12 : x
  2. Step 2: Convert to fraction form
    986,788.24/1,361,758.08 = 557,059.12/x
  3. Step 3: Cross multiply
    986,788.24x = 1,361,758.08 × 557,059.12
  4. Step 4: Simplify right side
    986,788.24x = 758,579,757,697.69
  5. Step 5: Solve for x
    x = 758,579,757,697.69/986,788.24
  6. Step 6: Final answer
    x = 768,736.11

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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.