Home / 890,661.38-1,229,190.46-488,331.14

Finding the Fourth Proportional to 890,661.38, 1,229,190.46 and 488,331.14

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Solution

The fourth proportional to 890,661.38, 1,229,190.46 and 488,331.14 is: 673,939.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,661.38 : 1,229,190.46 = 488,331.14 : x
  2. Step 2: Convert to fraction form
    890,661.38/1,229,190.46 = 488,331.14/x
  3. Step 3: Cross multiply
    890,661.38x = 1,229,190.46 × 488,331.14
  4. Step 4: Simplify right side
    890,661.38x = 600,251,971,242.14
  5. Step 5: Solve for x
    x = 600,251,971,242.14/890,661.38
  6. Step 6: Final answer
    x = 673,939.60

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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.