Home / 891,115.30-1,335,688.80-492,042.48

Finding the Fourth Proportional to 891,115.30, 1,335,688.80 and 492,042.48

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Solution

The fourth proportional to 891,115.30, 1,335,688.80 and 492,042.48 is: 737,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,115.30 : 1,335,688.80 = 492,042.48 : x
  2. Step 2: Convert to fraction form
    891,115.30/1,335,688.80 = 492,042.48/x
  3. Step 3: Cross multiply
    891,115.30x = 1,335,688.80 × 492,042.48
  4. Step 4: Simplify right side
    891,115.30x = 657,215,629,660.22
  5. Step 5: Solve for x
    x = 657,215,629,660.22/891,115.30
  6. Step 6: Final answer
    x = 737,520.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.