Home / 1,386,022.80-2,081,172.60-756,166.80

Finding the Fourth Proportional to 1,386,022.80, 2,081,172.60 and 756,166.80

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Solution

The fourth proportional to 1,386,022.80, 2,081,172.60 and 756,166.80 is: 1,135,416.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,022.80 : 2,081,172.60 = 756,166.80 : x
  2. Step 2: Convert to fraction form
    1,386,022.80/2,081,172.60 = 756,166.80/x
  3. Step 3: Cross multiply
    1,386,022.80x = 2,081,172.60 × 756,166.80
  4. Step 4: Simplify right side
    1,386,022.80x = 1,573,713,625,189.68
  5. Step 5: Solve for x
    x = 1,573,713,625,189.68/1,386,022.80
  6. Step 6: Final answer
    x = 1,135,416.84

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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.