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Finding the Fourth Proportional to 448,073.30, 618,569.68 and 303,642.11

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Solution

The fourth proportional to 448,073.30, 618,569.68 and 303,642.11 is: 419,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,073.30 : 618,569.68 = 303,642.11 : x
  2. Step 2: Convert to fraction form
    448,073.30/618,569.68 = 303,642.11/x
  3. Step 3: Cross multiply
    448,073.30x = 618,569.68 × 303,642.11
  4. Step 4: Simplify right side
    448,073.30x = 187,823,803,604.54
  5. Step 5: Solve for x
    x = 187,823,803,604.54/448,073.30
  6. Step 6: Final answer
    x = 419,180.97

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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.