Home / 1,085,669.60-1,628,504.40-816,231.20

Finding the Fourth Proportional to 1,085,669.60, 1,628,504.40 and 816,231.20

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Solution

The fourth proportional to 1,085,669.60, 1,628,504.40 and 816,231.20 is: 1,224,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,669.60 : 1,628,504.40 = 816,231.20 : x
  2. Step 2: Convert to fraction form
    1,085,669.60/1,628,504.40 = 816,231.20/x
  3. Step 3: Cross multiply
    1,085,669.60x = 1,628,504.40 × 816,231.20
  4. Step 4: Simplify right side
    1,085,669.60x = 1,329,236,100,617.28
  5. Step 5: Solve for x
    x = 1,329,236,100,617.28/1,085,669.60
  6. Step 6: Final answer
    x = 1,224,346.80

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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.