Home / 1,986,080-2,978,676.64-920,983.66

Finding the Fourth Proportional to 1,986,080, 2,978,676.64 and 920,983.66

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Solution

The fourth proportional to 1,986,080, 2,978,676.64 and 920,983.66 is: 1,381,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,080 : 2,978,676.64 = 920,983.66 : x
  2. Step 2: Convert to fraction form
    1,986,080/2,978,676.64 = 920,983.66/x
  3. Step 3: Cross multiply
    1,986,080x = 2,978,676.64 × 920,983.66
  4. Step 4: Simplify right side
    1,986,080x = 2,743,312,513,863.70
  5. Step 5: Solve for x
    x = 2,743,312,513,863.70/1,986,080
  6. Step 6: Final answer
    x = 1,381,269.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.