Home / 1,321,162.21-1,823,142.82-748,206.51

Finding the Fourth Proportional to 1,321,162.21, 1,823,142.82 and 748,206.51

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Solution

The fourth proportional to 1,321,162.21, 1,823,142.82 and 748,206.51 is: 1,032,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,162.21 : 1,823,142.82 = 748,206.51 : x
  2. Step 2: Convert to fraction form
    1,321,162.21/1,823,142.82 = 748,206.51/x
  3. Step 3: Cross multiply
    1,321,162.21x = 1,823,142.82 × 748,206.51
  4. Step 4: Simplify right side
    1,321,162.21x = 1,364,087,326,583.76
  5. Step 5: Solve for x
    x = 1,364,087,326,583.76/1,321,162.21
  6. Step 6: Final answer
    x = 1,032,490.42

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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.