Home / 1,309,808.94-1,807,263.68-765,839.13

Finding the Fourth Proportional to 1,309,808.94, 1,807,263.68 and 765,839.13

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Solution

The fourth proportional to 1,309,808.94, 1,807,263.68 and 765,839.13 is: 1,056,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,808.94 : 1,807,263.68 = 765,839.13 : x
  2. Step 2: Convert to fraction form
    1,309,808.94/1,807,263.68 = 765,839.13/x
  3. Step 3: Cross multiply
    1,309,808.94x = 1,807,263.68 × 765,839.13
  4. Step 4: Simplify right side
    1,309,808.94x = 1,384,073,240,542.60
  5. Step 5: Solve for x
    x = 1,384,073,240,542.60/1,309,808.94
  6. Step 6: Final answer
    x = 1,056,698.58

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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.