Home / 448,322.50-618,335.05-287,192.53

Finding the Fourth Proportional to 448,322.50, 618,335.05 and 287,192.53

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Solution

The fourth proportional to 448,322.50, 618,335.05 and 287,192.53 is: 396,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,322.50 : 618,335.05 = 287,192.53 : x
  2. Step 2: Convert to fraction form
    448,322.50/618,335.05 = 287,192.53/x
  3. Step 3: Cross multiply
    448,322.50x = 618,335.05 × 287,192.53
  4. Step 4: Simplify right side
    448,322.50x = 177,581,202,869.54
  5. Step 5: Solve for x
    x = 177,581,202,869.54/448,322.50
  6. Step 6: Final answer
    x = 396,101.48

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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.