Home / 1,103,212.80-1,655,638.40-438,841.60

Finding the Fourth Proportional to 1,103,212.80, 1,655,638.40 and 438,841.60

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Solution

The fourth proportional to 1,103,212.80, 1,655,638.40 and 438,841.60 is: 658,588.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,212.80 : 1,655,638.40 = 438,841.60 : x
  2. Step 2: Convert to fraction form
    1,103,212.80/1,655,638.40 = 438,841.60/x
  3. Step 3: Cross multiply
    1,103,212.80x = 1,655,638.40 × 438,841.60
  4. Step 4: Simplify right side
    1,103,212.80x = 726,563,004,477.44
  5. Step 5: Solve for x
    x = 726,563,004,477.44/1,103,212.80
  6. Step 6: Final answer
    x = 658,588.27

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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.