Home / 748,469.21-1,122,687.69-208,711.10

Finding the Fourth Proportional to 748,469.21, 1,122,687.69 and 208,711.10

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Solution

The fourth proportional to 748,469.21, 1,122,687.69 and 208,711.10 is: 313,062.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,469.21 : 1,122,687.69 = 208,711.10 : x
  2. Step 2: Convert to fraction form
    748,469.21/1,122,687.69 = 208,711.10/x
  3. Step 3: Cross multiply
    748,469.21x = 1,122,687.69 × 208,711.10
  4. Step 4: Simplify right side
    748,469.21x = 234,317,382,736.36
  5. Step 5: Solve for x
    x = 234,317,382,736.36/748,469.21
  6. Step 6: Final answer
    x = 313,062.16

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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.