Home / 426,966.75-640,512.68-174,262.59

Finding the Fourth Proportional to 426,966.75, 640,512.68 and 174,262.59

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Solution

The fourth proportional to 426,966.75, 640,512.68 and 174,262.59 is: 261,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,966.75 : 640,512.68 = 174,262.59 : x
  2. Step 2: Convert to fraction form
    426,966.75/640,512.68 = 174,262.59/x
  3. Step 3: Cross multiply
    426,966.75x = 640,512.68 × 174,262.59
  4. Step 4: Simplify right side
    426,966.75x = 111,617,397,673.33
  5. Step 5: Solve for x
    x = 111,617,397,673.33/426,966.75
  6. Step 6: Final answer
    x = 261,419.41

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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.