Home / 1,993,121.40-2,989,682.10-731,441.10

Finding the Fourth Proportional to 1,993,121.40, 2,989,682.10 and 731,441.10

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Solution

The fourth proportional to 1,993,121.40, 2,989,682.10 and 731,441.10 is: 1,097,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,121.40 : 2,989,682.10 = 731,441.10 : x
  2. Step 2: Convert to fraction form
    1,993,121.40/2,989,682.10 = 731,441.10/x
  3. Step 3: Cross multiply
    1,993,121.40x = 2,989,682.10 × 731,441.10
  4. Step 4: Simplify right side
    1,993,121.40x = 2,186,776,363,874.31
  5. Step 5: Solve for x
    x = 2,186,776,363,874.31/1,993,121.40
  6. Step 6: Final answer
    x = 1,097,161.65

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Why These Related Problems?

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