Home / 1,330,287.70-1,993,135.20-618,856.60

Finding the Fourth Proportional to 1,330,287.70, 1,993,135.20 and 618,856.60

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Solution

The fourth proportional to 1,330,287.70, 1,993,135.20 and 618,856.60 is: 927,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,287.70 : 1,993,135.20 = 618,856.60 : x
  2. Step 2: Convert to fraction form
    1,330,287.70/1,993,135.20 = 618,856.60/x
  3. Step 3: Cross multiply
    1,330,287.70x = 1,993,135.20 × 618,856.60
  4. Step 4: Simplify right side
    1,330,287.70x = 1,233,464,873,212.32
  5. Step 5: Solve for x
    x = 1,233,464,873,212.32/1,330,287.70
  6. Step 6: Final answer
    x = 927,216.63

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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.