Home / 3,818,608.70-5,727,783.45-978,748.70

Finding the Fourth Proportional to 3,818,608.70, 5,727,783.45 and 978,748.70

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Solution

The fourth proportional to 3,818,608.70, 5,727,783.45 and 978,748.70 is: 1,468,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,608.70 : 5,727,783.45 = 978,748.70 : x
  2. Step 2: Convert to fraction form
    3,818,608.70/5,727,783.45 = 978,748.70/x
  3. Step 3: Cross multiply
    3,818,608.70x = 5,727,783.45 × 978,748.70
  4. Step 4: Simplify right side
    3,818,608.70x = 5,606,060,605,569.01
  5. Step 5: Solve for x
    x = 5,606,060,605,569.01/3,818,608.70
  6. Step 6: Final answer
    x = 1,468,089.83

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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.