Home / 448,910.66-618,936.36-287,500.34

Finding the Fourth Proportional to 448,910.66, 618,936.36 and 287,500.34

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Solution

The fourth proportional to 448,910.66, 618,936.36 and 287,500.34 is: 396,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,910.66 : 618,936.36 = 287,500.34 : x
  2. Step 2: Convert to fraction form
    448,910.66/618,936.36 = 287,500.34/x
  3. Step 3: Cross multiply
    448,910.66x = 618,936.36 × 287,500.34
  4. Step 4: Simplify right side
    448,910.66x = 177,944,413,938.36
  5. Step 5: Solve for x
    x = 177,944,413,938.36/448,910.66
  6. Step 6: Final answer
    x = 396,391.60

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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.