Home / 1,189,682.16-1,784,524.20-978,876.96

Finding the Fourth Proportional to 1,189,682.16, 1,784,524.20 and 978,876.96

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Solution

The fourth proportional to 1,189,682.16, 1,784,524.20 and 978,876.96 is: 1,468,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,682.16 : 1,784,524.20 = 978,876.96 : x
  2. Step 2: Convert to fraction form
    1,189,682.16/1,784,524.20 = 978,876.96/x
  3. Step 3: Cross multiply
    1,189,682.16x = 1,784,524.20 × 978,876.96
  4. Step 4: Simplify right side
    1,189,682.16x = 1,746,829,623,942.43
  5. Step 5: Solve for x
    x = 1,746,829,623,942.43/1,189,682.16
  6. Step 6: Final answer
    x = 1,468,316.23

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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.