Home / 1,330,288.70-1,995,433.05-905,135.90

Finding the Fourth Proportional to 1,330,288.70, 1,995,433.05 and 905,135.90

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Solution

The fourth proportional to 1,330,288.70, 1,995,433.05 and 905,135.90 is: 1,357,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,288.70 : 1,995,433.05 = 905,135.90 : x
  2. Step 2: Convert to fraction form
    1,330,288.70/1,995,433.05 = 905,135.90/x
  3. Step 3: Cross multiply
    1,330,288.70x = 1,995,433.05 × 905,135.90
  4. Step 4: Simplify right side
    1,330,288.70x = 1,806,138,089,601.50
  5. Step 5: Solve for x
    x = 1,806,138,089,601.50/1,330,288.70
  6. Step 6: Final answer
    x = 1,357,703.85

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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.