Home / 2,666,121.12-3,999,596.40-868,586.13

Finding the Fourth Proportional to 2,666,121.12, 3,999,596.40 and 868,586.13

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Solution

The fourth proportional to 2,666,121.12, 3,999,596.40 and 868,586.13 is: 1,303,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,121.12 : 3,999,596.40 = 868,586.13 : x
  2. Step 2: Convert to fraction form
    2,666,121.12/3,999,596.40 = 868,586.13/x
  3. Step 3: Cross multiply
    2,666,121.12x = 3,999,596.40 × 868,586.13
  4. Step 4: Simplify right side
    2,666,121.12x = 3,473,993,958,637.93
  5. Step 5: Solve for x
    x = 3,473,993,958,637.93/2,666,121.12
  6. Step 6: Final answer
    x = 1,303,014.31

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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.