Home / 448,623.40-618,943.96-287,567.26

Finding the Fourth Proportional to 448,623.40, 618,943.96 and 287,567.26

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Solution

The fourth proportional to 448,623.40, 618,943.96 and 287,567.26 is: 396,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,623.40 : 618,943.96 = 287,567.26 : x
  2. Step 2: Convert to fraction form
    448,623.40/618,943.96 = 287,567.26/x
  3. Step 3: Cross multiply
    448,623.40x = 618,943.96 × 287,567.26
  4. Step 4: Simplify right side
    448,623.40x = 177,988,017,842.31
  5. Step 5: Solve for x
    x = 177,988,017,842.31/448,623.40
  6. Step 6: Final answer
    x = 396,742.61

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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.