Home / 1,085,972.40-1,629,736.20-455,338.80

Finding the Fourth Proportional to 1,085,972.40, 1,629,736.20 and 455,338.80

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Solution

The fourth proportional to 1,085,972.40, 1,629,736.20 and 455,338.80 is: 683,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,972.40 : 1,629,736.20 = 455,338.80 : x
  2. Step 2: Convert to fraction form
    1,085,972.40/1,629,736.20 = 455,338.80/x
  3. Step 3: Cross multiply
    1,085,972.40x = 1,629,736.20 × 455,338.80
  4. Step 4: Simplify right side
    1,085,972.40x = 742,082,125,624.56
  5. Step 5: Solve for x
    x = 742,082,125,624.56/1,085,972.40
  6. Step 6: Final answer
    x = 683,334.24

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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.