Home / 1,085,688.80-1,629,845.40-1,077,815.60

Finding the Fourth Proportional to 1,085,688.80, 1,629,845.40 and 1,077,815.60

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Solution

The fourth proportional to 1,085,688.80, 1,629,845.40 and 1,077,815.60 is: 1,618,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,688.80 : 1,629,845.40 = 1,077,815.60 : x
  2. Step 2: Convert to fraction form
    1,085,688.80/1,629,845.40 = 1,077,815.60/x
  3. Step 3: Cross multiply
    1,085,688.80x = 1,629,845.40 × 1,077,815.60
  4. Step 4: Simplify right side
    1,085,688.80x = 1,756,672,797,708.24
  5. Step 5: Solve for x
    x = 1,756,672,797,708.24/1,085,688.80
  6. Step 6: Final answer
    x = 1,618,026.08

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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.