Home / 1,456,262.82-2,009,711.79-811,687.77

Finding the Fourth Proportional to 1,456,262.82, 2,009,711.79 and 811,687.77

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Solution

The fourth proportional to 1,456,262.82, 2,009,711.79 and 811,687.77 is: 1,120,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,262.82 : 2,009,711.79 = 811,687.77 : x
  2. Step 2: Convert to fraction form
    1,456,262.82/2,009,711.79 = 811,687.77/x
  3. Step 3: Cross multiply
    1,456,262.82x = 2,009,711.79 × 811,687.77
  4. Step 4: Simplify right side
    1,456,262.82x = 1,631,258,481,167.81
  5. Step 5: Solve for x
    x = 1,631,258,481,167.81/1,456,262.82
  6. Step 6: Final answer
    x = 1,120,167.64

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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.