Home / 448,594.33-618,710.27-287,464.36

Finding the Fourth Proportional to 448,594.33, 618,710.27 and 287,464.36

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Solution

The fourth proportional to 448,594.33, 618,710.27 and 287,464.36 is: 396,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,594.33 : 618,710.27 = 287,464.36 : x
  2. Step 2: Convert to fraction form
    448,594.33/618,710.27 = 287,464.36/x
  3. Step 3: Cross multiply
    448,594.33x = 618,710.27 × 287,464.36
  4. Step 4: Simplify right side
    448,594.33x = 177,857,151,790.98
  5. Step 5: Solve for x
    x = 177,857,151,790.98/448,594.33
  6. Step 6: Final answer
    x = 396,476.59

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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.