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Finding the Fourth Proportional to 550,047.36, 759,100.44 and 308,330.04

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Solution

The fourth proportional to 550,047.36, 759,100.44 and 308,330.04 is: 425,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,047.36 : 759,100.44 = 308,330.04 : x
  2. Step 2: Convert to fraction form
    550,047.36/759,100.44 = 308,330.04/x
  3. Step 3: Cross multiply
    550,047.36x = 759,100.44 × 308,330.04
  4. Step 4: Simplify right side
    550,047.36x = 234,053,469,029.22
  5. Step 5: Solve for x
    x = 234,053,469,029.22/550,047.36
  6. Step 6: Final answer
    x = 425,515.12

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1.5x scale

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.