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Finding the Fourth Proportional to 550,053.88, 759,060.72 and 305,037.24

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Solution

The fourth proportional to 550,053.88, 759,060.72 and 305,037.24 is: 420,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,053.88 : 759,060.72 = 305,037.24 : x
  2. Step 2: Convert to fraction form
    550,053.88/759,060.72 = 305,037.24/x
  3. Step 3: Cross multiply
    550,053.88x = 759,060.72 × 305,037.24
  4. Step 4: Simplify right side
    550,053.88x = 231,541,787,021.21
  5. Step 5: Solve for x
    x = 231,541,787,021.21/550,053.88
  6. Step 6: Final answer
    x = 420,943.83

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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.