Home / 1,311,387.36-1,965,914.02-512,487.19

Finding the Fourth Proportional to 1,311,387.36, 1,965,914.02 and 512,487.19

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Solution

The fourth proportional to 1,311,387.36, 1,965,914.02 and 512,487.19 is: 768,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,387.36 : 1,965,914.02 = 512,487.19 : x
  2. Step 2: Convert to fraction form
    1,311,387.36/1,965,914.02 = 512,487.19/x
  3. Step 3: Cross multiply
    1,311,387.36x = 1,965,914.02 × 512,487.19
  4. Step 4: Simplify right side
    1,311,387.36x = 1,007,505,751,891.40
  5. Step 5: Solve for x
    x = 1,007,505,751,891.40/1,311,387.36
  6. Step 6: Final answer
    x = 768,274.72

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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.