Home / 448,623.97-618,944.74-287,567.82

Finding the Fourth Proportional to 448,623.97, 618,944.74 and 287,567.82

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Solution

The fourth proportional to 448,623.97, 618,944.74 and 287,567.82 is: 396,743.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,623.97 : 618,944.74 = 287,567.82 : x
  2. Step 2: Convert to fraction form
    448,623.97/618,944.74 = 287,567.82/x
  3. Step 3: Cross multiply
    448,623.97x = 618,944.74 × 287,567.82
  4. Step 4: Simplify right side
    448,623.97x = 177,988,589,582.27
  5. Step 5: Solve for x
    x = 177,988,589,582.27/448,623.97
  6. Step 6: Final answer
    x = 396,743.38

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1.5x scale

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.