Home / 1,681,109.21-2,320,109.44-1,028,117.24

Finding the Fourth Proportional to 1,681,109.21, 2,320,109.44 and 1,028,117.24

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Solution

The fourth proportional to 1,681,109.21, 2,320,109.44 and 1,028,117.24 is: 1,418,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,109.21 : 2,320,109.44 = 1,028,117.24 : x
  2. Step 2: Convert to fraction form
    1,681,109.21/2,320,109.44 = 1,028,117.24/x
  3. Step 3: Cross multiply
    1,681,109.21x = 2,320,109.44 × 1,028,117.24
  4. Step 4: Simplify right side
    1,681,109.21x = 2,385,344,527,314.09
  5. Step 5: Solve for x
    x = 2,385,344,527,314.09/1,681,109.21
  6. Step 6: Final answer
    x = 1,418,911.11

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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.