Home / 837,768.48-1,156,107.78-455,786.52

Finding the Fourth Proportional to 837,768.48, 1,156,107.78 and 455,786.52

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Solution

The fourth proportional to 837,768.48, 1,156,107.78 and 455,786.52 is: 628,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,768.48 : 1,156,107.78 = 455,786.52 : x
  2. Step 2: Convert to fraction form
    837,768.48/1,156,107.78 = 455,786.52/x
  3. Step 3: Cross multiply
    837,768.48x = 1,156,107.78 × 455,786.52
  4. Step 4: Simplify right side
    837,768.48x = 526,938,341,791.13
  5. Step 5: Solve for x
    x = 526,938,341,791.13/837,768.48
  6. Step 6: Final answer
    x = 628,978.48

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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.