Home / 1,989,754.86-2,745,082.21-1,224,479.82

Finding the Fourth Proportional to 1,989,754.86, 2,745,082.21 and 1,224,479.82

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Solution

The fourth proportional to 1,989,754.86, 2,745,082.21 and 1,224,479.82 is: 1,689,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,754.86 : 2,745,082.21 = 1,224,479.82 : x
  2. Step 2: Convert to fraction form
    1,989,754.86/2,745,082.21 = 1,224,479.82/x
  3. Step 3: Cross multiply
    1,989,754.86x = 2,745,082.21 × 1,224,479.82
  4. Step 4: Simplify right side
    1,989,754.86x = 3,361,297,770,386.00
  5. Step 5: Solve for x
    x = 3,361,297,770,386.00/1,989,754.86
  6. Step 6: Final answer
    x = 1,689,302.46

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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.