Home / 1,118,766.80-1,677,142.56-408,296.36

Finding the Fourth Proportional to 1,118,766.80, 1,677,142.56 and 408,296.36

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Solution

The fourth proportional to 1,118,766.80, 1,677,142.56 and 408,296.36 is: 612,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,766.80 : 1,677,142.56 = 408,296.36 : x
  2. Step 2: Convert to fraction form
    1,118,766.80/1,677,142.56 = 408,296.36/x
  3. Step 3: Cross multiply
    1,118,766.80x = 1,677,142.56 × 408,296.36
  4. Step 4: Simplify right side
    1,118,766.80x = 684,771,202,449.08
  5. Step 5: Solve for x
    x = 684,771,202,449.08/1,118,766.80
  6. Step 6: Final answer
    x = 612,076.80

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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.