Home / 391,669.16-587,504.07-107,362.80

Finding the Fourth Proportional to 391,669.16, 587,504.07 and 107,362.80

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Solution

The fourth proportional to 391,669.16, 587,504.07 and 107,362.80 is: 161,044.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,669.16 : 587,504.07 = 107,362.80 : x
  2. Step 2: Convert to fraction form
    391,669.16/587,504.07 = 107,362.80/x
  3. Step 3: Cross multiply
    391,669.16x = 587,504.07 × 107,362.80
  4. Step 4: Simplify right side
    391,669.16x = 63,076,081,966.60
  5. Step 5: Solve for x
    x = 63,076,081,966.60/391,669.16
  6. Step 6: Final answer
    x = 161,044.29

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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.