Home / 1,321,161.30-1,823,141.67-748,205.64

Finding the Fourth Proportional to 1,321,161.30, 1,823,141.67 and 748,205.64

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Solution

The fourth proportional to 1,321,161.30, 1,823,141.67 and 748,205.64 is: 1,032,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,161.30 : 1,823,141.67 = 748,205.64 : x
  2. Step 2: Convert to fraction form
    1,321,161.30/1,823,141.67 = 748,205.64/x
  3. Step 3: Cross multiply
    1,321,161.30x = 1,823,141.67 × 748,205.64
  4. Step 4: Simplify right side
    1,321,161.30x = 1,364,084,880,013.02
  5. Step 5: Solve for x
    x = 1,364,084,880,013.02/1,321,161.30
  6. Step 6: Final answer
    x = 1,032,489.28

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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.