Home / 1,259,290.80-1,889,494.56-660,108.96

Finding the Fourth Proportional to 1,259,290.80, 1,889,494.56 and 660,108.96

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Solution

The fourth proportional to 1,259,290.80, 1,889,494.56 and 660,108.96 is: 990,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,290.80 : 1,889,494.56 = 660,108.96 : x
  2. Step 2: Convert to fraction form
    1,259,290.80/1,889,494.56 = 660,108.96/x
  3. Step 3: Cross multiply
    1,259,290.80x = 1,889,494.56 × 660,108.96
  4. Step 4: Simplify right side
    1,259,290.80x = 1,247,272,288,927.26
  5. Step 5: Solve for x
    x = 1,247,272,288,927.26/1,259,290.80
  6. Step 6: Final answer
    x = 990,456.13

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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.