Home / 448,434.32-618,489.43-287,304.46

Finding the Fourth Proportional to 448,434.32, 618,489.43 and 287,304.46

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Solution

The fourth proportional to 448,434.32, 618,489.43 and 287,304.46 is: 396,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,434.32 : 618,489.43 = 287,304.46 : x
  2. Step 2: Convert to fraction form
    448,434.32/618,489.43 = 287,304.46/x
  3. Step 3: Cross multiply
    448,434.32x = 618,489.43 × 287,304.46
  4. Step 4: Simplify right side
    448,434.32x = 177,694,769,437.37
  5. Step 5: Solve for x
    x = 177,694,769,437.37/448,434.32
  6. Step 6: Final answer
    x = 396,255.96

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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.