Home / 1,172,259.36-1,756,378.12-787,286.56

Finding the Fourth Proportional to 1,172,259.36, 1,756,378.12 and 787,286.56

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Solution

The fourth proportional to 1,172,259.36, 1,756,378.12 and 787,286.56 is: 1,179,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,259.36 : 1,756,378.12 = 787,286.56 : x
  2. Step 2: Convert to fraction form
    1,172,259.36/1,756,378.12 = 787,286.56/x
  3. Step 3: Cross multiply
    1,172,259.36x = 1,756,378.12 × 787,286.56
  4. Step 4: Simplify right side
    1,172,259.36x = 1,382,772,888,154.07
  5. Step 5: Solve for x
    x = 1,382,772,888,154.07/1,172,259.36
  6. Step 6: Final answer
    x = 1,179,579.31

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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.