Home / 1,490.19-2,234.48-450.03

Finding the Fourth Proportional to 1,490.19, 2,234.48 and 450.03

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Solution

The fourth proportional to 1,490.19, 2,234.48 and 450.03 is: 674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.19 : 2,234.48 = 450.03 : x
  2. Step 2: Convert to fraction form
    1,490.19/2,234.48 = 450.03/x
  3. Step 3: Cross multiply
    1,490.19x = 2,234.48 × 450.03
  4. Step 4: Simplify right side
    1,490.19x = 1,005,580.78
  5. Step 5: Solve for x
    x = 1,005,580.78/1,490.19
  6. Step 6: Final answer
    x = 674.80

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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.