Home / 2,191,636.80-3,285,122.40-843,278.40

Finding the Fourth Proportional to 2,191,636.80, 3,285,122.40 and 843,278.40

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Solution

The fourth proportional to 2,191,636.80, 3,285,122.40 and 843,278.40 is: 1,264,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,636.80 : 3,285,122.40 = 843,278.40 : x
  2. Step 2: Convert to fraction form
    2,191,636.80/3,285,122.40 = 843,278.40/x
  3. Step 3: Cross multiply
    2,191,636.80x = 3,285,122.40 × 843,278.40
  4. Step 4: Simplify right side
    2,191,636.80x = 2,770,272,761,276.16
  5. Step 5: Solve for x
    x = 2,770,272,761,276.16/2,191,636.80
  6. Step 6: Final answer
    x = 1,264,020.01

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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.