Home / 1,259,318.30-1,889,535.82-660,136.46

Finding the Fourth Proportional to 1,259,318.30, 1,889,535.82 and 660,136.46

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Solution

The fourth proportional to 1,259,318.30, 1,889,535.82 and 660,136.46 is: 990,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,318.30 : 1,889,535.82 = 660,136.46 : x
  2. Step 2: Convert to fraction form
    1,259,318.30/1,889,535.82 = 660,136.46/x
  3. Step 3: Cross multiply
    1,259,318.30x = 1,889,535.82 × 660,136.46
  4. Step 4: Simplify right side
    1,259,318.30x = 1,247,351,487,258.00
  5. Step 5: Solve for x
    x = 1,247,351,487,258.00/1,259,318.30
  6. Step 6: Final answer
    x = 990,497.39

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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.