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Finding the Fourth Proportional to 550,044.68, 759,063.43 and 305,047.02

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Solution

The fourth proportional to 550,044.68, 759,063.43 and 305,047.02 is: 420,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,044.68 : 759,063.43 = 305,047.02 : x
  2. Step 2: Convert to fraction form
    550,044.68/759,063.43 = 305,047.02/x
  3. Step 3: Cross multiply
    550,044.68x = 759,063.43 × 305,047.02
  4. Step 4: Simplify right side
    550,044.68x = 231,550,037,312.48
  5. Step 5: Solve for x
    x = 231,550,037,312.48/550,044.68
  6. Step 6: Final answer
    x = 420,965.87

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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.