Home / 768,194.19-1,151,640.57-318,634.47

Finding the Fourth Proportional to 768,194.19, 1,151,640.57 and 318,634.47

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Solution

The fourth proportional to 768,194.19, 1,151,640.57 and 318,634.47 is: 477,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,194.19 : 1,151,640.57 = 318,634.47 : x
  2. Step 2: Convert to fraction form
    768,194.19/1,151,640.57 = 318,634.47/x
  3. Step 3: Cross multiply
    768,194.19x = 1,151,640.57 × 318,634.47
  4. Step 4: Simplify right side
    768,194.19x = 366,952,382,652.45
  5. Step 5: Solve for x
    x = 366,952,382,652.45/768,194.19
  6. Step 6: Final answer
    x = 477,681.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.