Home / 1,330,298.70-1,995,448.05-905,145.90

Finding the Fourth Proportional to 1,330,298.70, 1,995,448.05 and 905,145.90

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Solution

The fourth proportional to 1,330,298.70, 1,995,448.05 and 905,145.90 is: 1,357,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,298.70 : 1,995,448.05 = 905,145.90 : x
  2. Step 2: Convert to fraction form
    1,330,298.70/1,995,448.05 = 905,145.90/x
  3. Step 3: Cross multiply
    1,330,298.70x = 1,995,448.05 × 905,145.90
  4. Step 4: Simplify right side
    1,330,298.70x = 1,806,171,621,120.50
  5. Step 5: Solve for x
    x = 1,806,171,621,120.50/1,330,298.70
  6. Step 6: Final answer
    x = 1,357,718.85

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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.