Home / 3,818,642.20-5,727,833.70-978,782.20

Finding the Fourth Proportional to 3,818,642.20, 5,727,833.70 and 978,782.20

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Solution

The fourth proportional to 3,818,642.20, 5,727,833.70 and 978,782.20 is: 1,468,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,642.20 : 5,727,833.70 = 978,782.20 : x
  2. Step 2: Convert to fraction form
    3,818,642.20/5,727,833.70 = 978,782.20/x
  3. Step 3: Cross multiply
    3,818,642.20x = 5,727,833.70 × 978,782.20
  4. Step 4: Simplify right side
    3,818,642.20x = 5,606,301,670,120.14
  5. Step 5: Solve for x
    x = 5,606,301,670,120.14/3,818,642.20
  6. Step 6: Final answer
    x = 1,468,140.08

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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.