Home / 856,218.33-1,182,375.54-640,984.68

Finding the Fourth Proportional to 856,218.33, 1,182,375.54 and 640,984.68

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Solution

The fourth proportional to 856,218.33, 1,182,375.54 and 640,984.68 is: 885,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,218.33 : 1,182,375.54 = 640,984.68 : x
  2. Step 2: Convert to fraction form
    856,218.33/1,182,375.54 = 640,984.68/x
  3. Step 3: Cross multiply
    856,218.33x = 1,182,375.54 × 640,984.68
  4. Step 4: Simplify right side
    856,218.33x = 757,884,607,146.73
  5. Step 5: Solve for x
    x = 757,884,607,146.73/856,218.33
  6. Step 6: Final answer
    x = 885,153.45

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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.