Home / 3,818,609.70-5,727,784.95-978,749.70

Finding the Fourth Proportional to 3,818,609.70, 5,727,784.95 and 978,749.70

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Solution

The fourth proportional to 3,818,609.70, 5,727,784.95 and 978,749.70 is: 1,468,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,609.70 : 5,727,784.95 = 978,749.70 : x
  2. Step 2: Convert to fraction form
    3,818,609.70/5,727,784.95 = 978,749.70/x
  3. Step 3: Cross multiply
    3,818,609.70x = 5,727,784.95 × 978,749.70
  4. Step 4: Simplify right side
    3,818,609.70x = 5,606,067,801,477.01
  5. Step 5: Solve for x
    x = 5,606,067,801,477.01/3,818,609.70
  6. Step 6: Final answer
    x = 1,468,091.33

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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.