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Finding the Fourth Proportional to 448,862.86, 618,870.46 and 287,452.54

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Solution

The fourth proportional to 448,862.86, 618,870.46 and 287,452.54 is: 396,325.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,862.86 : 618,870.46 = 287,452.54 : x
  2. Step 2: Convert to fraction form
    448,862.86/618,870.46 = 287,452.54/x
  3. Step 3: Cross multiply
    448,862.86x = 618,870.46 × 287,452.54
  4. Step 4: Simplify right side
    448,862.86x = 177,895,885,657.97
  5. Step 5: Solve for x
    x = 177,895,885,657.97/448,862.86
  6. Step 6: Final answer
    x = 396,325.70

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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.