Home / 1,455,738.12-2,008,898.28-811,185.48

Finding the Fourth Proportional to 1,455,738.12, 2,008,898.28 and 811,185.48

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Solution

The fourth proportional to 1,455,738.12, 2,008,898.28 and 811,185.48 is: 1,119,424.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,738.12 : 2,008,898.28 = 811,185.48 : x
  2. Step 2: Convert to fraction form
    1,455,738.12/2,008,898.28 = 811,185.48/x
  3. Step 3: Cross multiply
    1,455,738.12x = 2,008,898.28 × 811,185.48
  4. Step 4: Simplify right side
    1,455,738.12x = 1,629,589,115,532.97
  5. Step 5: Solve for x
    x = 1,629,589,115,532.97/1,455,738.12
  6. Step 6: Final answer
    x = 1,119,424.64

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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.