Home / 1,915,107.77-2,642,847.49-1,043,944.13

Finding the Fourth Proportional to 1,915,107.77, 2,642,847.49 and 1,043,944.13

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Solution

The fourth proportional to 1,915,107.77, 2,642,847.49 and 1,043,944.13 is: 1,440,642.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,107.77 : 2,642,847.49 = 1,043,944.13 : x
  2. Step 2: Convert to fraction form
    1,915,107.77/2,642,847.49 = 1,043,944.13/x
  3. Step 3: Cross multiply
    1,915,107.77x = 2,642,847.49 × 1,043,944.13
  4. Step 4: Simplify right side
    1,915,107.77x = 2,758,985,130,971.55
  5. Step 5: Solve for x
    x = 2,758,985,130,971.55/1,915,107.77
  6. Step 6: Final answer
    x = 1,440,642.23

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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.