Home / 1,320,691.19-1,821,706.92-907,028.30

Finding the Fourth Proportional to 1,320,691.19, 1,821,706.92 and 907,028.30

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Solution

The fourth proportional to 1,320,691.19, 1,821,706.92 and 907,028.30 is: 1,251,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,691.19 : 1,821,706.92 = 907,028.30 : x
  2. Step 2: Convert to fraction form
    1,320,691.19/1,821,706.92 = 907,028.30/x
  3. Step 3: Cross multiply
    1,320,691.19x = 1,821,706.92 × 907,028.30
  4. Step 4: Simplify right side
    1,320,691.19x = 1,652,339,721,637.30
  5. Step 5: Solve for x
    x = 1,652,339,721,637.30/1,320,691.19
  6. Step 6: Final answer
    x = 1,251,117.40

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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.