Home / 1,098,212.80-1,644,111.60-783,284.80

Finding the Fourth Proportional to 1,098,212.80, 1,644,111.60 and 783,284.80

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Solution

The fourth proportional to 1,098,212.80, 1,644,111.60 and 783,284.80 is: 1,172,639.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,212.80 : 1,644,111.60 = 783,284.80 : x
  2. Step 2: Convert to fraction form
    1,098,212.80/1,644,111.60 = 783,284.80/x
  3. Step 3: Cross multiply
    1,098,212.80x = 1,644,111.60 × 783,284.80
  4. Step 4: Simplify right side
    1,098,212.80x = 1,287,807,625,783.68
  5. Step 5: Solve for x
    x = 1,287,807,625,783.68/1,098,212.80
  6. Step 6: Final answer
    x = 1,172,639.42

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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.