Home / 1,259,309.80-1,889,523.06-660,127.96

Finding the Fourth Proportional to 1,259,309.80, 1,889,523.06 and 660,127.96

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Solution

The fourth proportional to 1,259,309.80, 1,889,523.06 and 660,127.96 is: 990,484.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,309.80 : 1,889,523.06 = 660,127.96 : x
  2. Step 2: Convert to fraction form
    1,259,309.80/1,889,523.06 = 660,127.96/x
  3. Step 3: Cross multiply
    1,259,309.80x = 1,889,523.06 × 660,127.96
  4. Step 4: Simplify right side
    1,259,309.80x = 1,247,327,002,970.76
  5. Step 5: Solve for x
    x = 1,247,327,002,970.76/1,259,309.80
  6. Step 6: Final answer
    x = 990,484.63

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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.