Home / 1,231,080.68-1,698,919.80-772,214.60

Finding the Fourth Proportional to 1,231,080.68, 1,698,919.80 and 772,214.60

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Solution

The fourth proportional to 1,231,080.68, 1,698,919.80 and 772,214.60 is: 1,065,674.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,080.68 : 1,698,919.80 = 772,214.60 : x
  2. Step 2: Convert to fraction form
    1,231,080.68/1,698,919.80 = 772,214.60/x
  3. Step 3: Cross multiply
    1,231,080.68x = 1,698,919.80 × 772,214.60
  4. Step 4: Simplify right side
    1,231,080.68x = 1,311,930,673,789.08
  5. Step 5: Solve for x
    x = 1,311,930,673,789.08/1,231,080.68
  6. Step 6: Final answer
    x = 1,065,674.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.