Home / 1,521,905.24-2,099,217.96-978,727.76

Finding the Fourth Proportional to 1,521,905.24, 2,099,217.96 and 978,727.76

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Solution

The fourth proportional to 1,521,905.24, 2,099,217.96 and 978,727.76 is: 1,349,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,905.24 : 2,099,217.96 = 978,727.76 : x
  2. Step 2: Convert to fraction form
    1,521,905.24/2,099,217.96 = 978,727.76/x
  3. Step 3: Cross multiply
    1,521,905.24x = 2,099,217.96 × 978,727.76
  4. Step 4: Simplify right side
    1,521,905.24x = 2,054,562,891,742.57
  5. Step 5: Solve for x
    x = 2,054,562,891,742.57/1,521,905.24
  6. Step 6: Final answer
    x = 1,349,993.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.