Home / 1,921,809.11-2,651,970.17-1,105,881.12

Finding the Fourth Proportional to 1,921,809.11, 2,651,970.17 and 1,105,881.12

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Solution

The fourth proportional to 1,921,809.11, 2,651,970.17 and 1,105,881.12 is: 1,526,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,809.11 : 2,651,970.17 = 1,105,881.12 : x
  2. Step 2: Convert to fraction form
    1,921,809.11/2,651,970.17 = 1,105,881.12/x
  3. Step 3: Cross multiply
    1,921,809.11x = 2,651,970.17 × 1,105,881.12
  4. Step 4: Simplify right side
    1,921,809.11x = 2,932,763,744,570.89
  5. Step 5: Solve for x
    x = 2,932,763,744,570.89/1,921,809.11
  6. Step 6: Final answer
    x = 1,526,043.21

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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.