Home / 1,077,815.10-1,616,722.65-978,087.90

Finding the Fourth Proportional to 1,077,815.10, 1,616,722.65 and 978,087.90

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Solution

The fourth proportional to 1,077,815.10, 1,616,722.65 and 978,087.90 is: 1,467,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,815.10 : 1,616,722.65 = 978,087.90 : x
  2. Step 2: Convert to fraction form
    1,077,815.10/1,616,722.65 = 978,087.90/x
  3. Step 3: Cross multiply
    1,077,815.10x = 1,616,722.65 × 978,087.90
  4. Step 4: Simplify right side
    1,077,815.10x = 1,581,296,861,620.94
  5. Step 5: Solve for x
    x = 1,581,296,861,620.94/1,077,815.10
  6. Step 6: Final answer
    x = 1,467,131.85

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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.