Home / 3,818,598.70-5,727,768.45-978,738.70

Finding the Fourth Proportional to 3,818,598.70, 5,727,768.45 and 978,738.70

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Solution

The fourth proportional to 3,818,598.70, 5,727,768.45 and 978,738.70 is: 1,468,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,598.70 : 5,727,768.45 = 978,738.70 : x
  2. Step 2: Convert to fraction form
    3,818,598.70/5,727,768.45 = 978,738.70/x
  3. Step 3: Cross multiply
    3,818,598.70x = 5,727,768.45 × 978,738.70
  4. Step 4: Simplify right side
    3,818,598.70x = 5,605,988,646,654.01
  5. Step 5: Solve for x
    x = 5,605,988,646,654.01/3,818,598.70
  6. Step 6: Final answer
    x = 1,468,074.83

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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.