Home / 1,218,696.21-1,681,780.19-674,820.29

Finding the Fourth Proportional to 1,218,696.21, 1,681,780.19 and 674,820.29

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Solution

The fourth proportional to 1,218,696.21, 1,681,780.19 and 674,820.29 is: 931,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,696.21 : 1,681,780.19 = 674,820.29 : x
  2. Step 2: Convert to fraction form
    1,218,696.21/1,681,780.19 = 674,820.29/x
  3. Step 3: Cross multiply
    1,218,696.21x = 1,681,780.19 × 674,820.29
  4. Step 4: Simplify right side
    1,218,696.21x = 1,134,899,396,362.40
  5. Step 5: Solve for x
    x = 1,134,899,396,362.40/1,218,696.21
  6. Step 6: Final answer
    x = 931,240.61

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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.