Home / 979,405.20-1,469,107.80-854,989.20

Finding the Fourth Proportional to 979,405.20, 1,469,107.80 and 854,989.20

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Solution

The fourth proportional to 979,405.20, 1,469,107.80 and 854,989.20 is: 1,282,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,405.20 : 1,469,107.80 = 854,989.20 : x
  2. Step 2: Convert to fraction form
    979,405.20/1,469,107.80 = 854,989.20/x
  3. Step 3: Cross multiply
    979,405.20x = 1,469,107.80 × 854,989.20
  4. Step 4: Simplify right side
    979,405.20x = 1,256,071,302,635.76
  5. Step 5: Solve for x
    x = 1,256,071,302,635.76/979,405.20
  6. Step 6: Final answer
    x = 1,282,483.80

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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.