Home / 1,086,057.40-1,629,863.70-455,423.80

Finding the Fourth Proportional to 1,086,057.40, 1,629,863.70 and 455,423.80

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Solution

The fourth proportional to 1,086,057.40, 1,629,863.70 and 455,423.80 is: 683,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,057.40 : 1,629,863.70 = 455,423.80 : x
  2. Step 2: Convert to fraction form
    1,086,057.40/1,629,863.70 = 455,423.80/x
  3. Step 3: Cross multiply
    1,086,057.40x = 1,629,863.70 × 455,423.80
  4. Step 4: Simplify right side
    1,086,057.40x = 742,278,719,736.06
  5. Step 5: Solve for x
    x = 742,278,719,736.06/1,086,057.40
  6. Step 6: Final answer
    x = 683,461.78

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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.