Home / 1,330,378.20-1,993,270.95-618,947.10

Finding the Fourth Proportional to 1,330,378.20, 1,993,270.95 and 618,947.10

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Solution

The fourth proportional to 1,330,378.20, 1,993,270.95 and 618,947.10 is: 927,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,378.20 : 1,993,270.95 = 618,947.10 : x
  2. Step 2: Convert to fraction form
    1,330,378.20/1,993,270.95 = 618,947.10/x
  3. Step 3: Cross multiply
    1,330,378.20x = 1,993,270.95 × 618,947.10
  4. Step 4: Simplify right side
    1,330,378.20x = 1,233,729,274,016.74
  5. Step 5: Solve for x
    x = 1,233,729,274,016.74/1,330,378.20
  6. Step 6: Final answer
    x = 927,352.29

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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.