Home / 1,971,392.12-2,720,648.08-1,111,933.92

Finding the Fourth Proportional to 1,971,392.12, 2,720,648.08 and 1,111,933.92

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Solution

The fourth proportional to 1,971,392.12, 2,720,648.08 and 1,111,933.92 is: 1,534,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,392.12 : 2,720,648.08 = 1,111,933.92 : x
  2. Step 2: Convert to fraction form
    1,971,392.12/2,720,648.08 = 1,111,933.92/x
  3. Step 3: Cross multiply
    1,971,392.12x = 2,720,648.08 × 1,111,933.92
  4. Step 4: Simplify right side
    1,971,392.12x = 3,025,180,884,534.87
  5. Step 5: Solve for x
    x = 3,025,180,884,534.87/1,971,392.12
  6. Step 6: Final answer
    x = 1,534,540.42

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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.