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Finding the Fourth Proportional to 548,999.05, 757,634.71 and 307,275.41

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Solution

The fourth proportional to 548,999.05, 757,634.71 and 307,275.41 is: 424,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,999.05 : 757,634.71 = 307,275.41 : x
  2. Step 2: Convert to fraction form
    548,999.05/757,634.71 = 307,275.41/x
  3. Step 3: Cross multiply
    548,999.05x = 757,634.71 × 307,275.41
  4. Step 4: Simplify right side
    548,999.05x = 232,802,516,145.48
  5. Step 5: Solve for x
    x = 232,802,516,145.48/548,999.05
  6. Step 6: Final answer
    x = 424,049.03

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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.