Home / 2,190,896.23-3,023,381.09-1,224,033.78

Finding the Fourth Proportional to 2,190,896.23, 3,023,381.09 and 1,224,033.78

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Solution

The fourth proportional to 2,190,896.23, 3,023,381.09 and 1,224,033.78 is: 1,689,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,896.23 : 3,023,381.09 = 1,224,033.78 : x
  2. Step 2: Convert to fraction form
    2,190,896.23/3,023,381.09 = 1,224,033.78/x
  3. Step 3: Cross multiply
    2,190,896.23x = 3,023,381.09 × 1,224,033.78
  4. Step 4: Simplify right side
    2,190,896.23x = 3,700,720,581,364.47
  5. Step 5: Solve for x
    x = 3,700,720,581,364.47/2,190,896.23
  6. Step 6: Final answer
    x = 1,689,135.49

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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.