Home / 1,259,308.80-1,889,521.56-660,126.96

Finding the Fourth Proportional to 1,259,308.80, 1,889,521.56 and 660,126.96

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Solution

The fourth proportional to 1,259,308.80, 1,889,521.56 and 660,126.96 is: 990,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,308.80 : 1,889,521.56 = 660,126.96 : x
  2. Step 2: Convert to fraction form
    1,259,308.80/1,889,521.56 = 660,126.96/x
  3. Step 3: Cross multiply
    1,259,308.80x = 1,889,521.56 × 660,126.96
  4. Step 4: Simplify right side
    1,259,308.80x = 1,247,324,123,257.26
  5. Step 5: Solve for x
    x = 1,247,324,123,257.26/1,259,308.80
  6. Step 6: Final answer
    x = 990,483.13

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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.