Home / 1,455,634.32-2,008,748.78-811,040.74

Finding the Fourth Proportional to 1,455,634.32, 2,008,748.78 and 811,040.74

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Solution

The fourth proportional to 1,455,634.32, 2,008,748.78 and 811,040.74 is: 1,119,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,634.32 : 2,008,748.78 = 811,040.74 : x
  2. Step 2: Convert to fraction form
    1,455,634.32/2,008,748.78 = 811,040.74/x
  3. Step 3: Cross multiply
    1,455,634.32x = 2,008,748.78 × 811,040.74
  4. Step 4: Simplify right side
    1,455,634.32x = 1,629,177,097,005.30
  5. Step 5: Solve for x
    x = 1,629,177,097,005.30/1,455,634.32
  6. Step 6: Final answer
    x = 1,119,221.41

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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.