Home / 1,921,379.28-2,651,640.66-1,061,921.04

Finding the Fourth Proportional to 1,921,379.28, 2,651,640.66 and 1,061,921.04

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Solution

The fourth proportional to 1,921,379.28, 2,651,640.66 and 1,061,921.04 is: 1,465,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,379.28 : 2,651,640.66 = 1,061,921.04 : x
  2. Step 2: Convert to fraction form
    1,921,379.28/2,651,640.66 = 1,061,921.04/x
  3. Step 3: Cross multiply
    1,921,379.28x = 2,651,640.66 × 1,061,921.04
  4. Step 4: Simplify right side
    1,921,379.28x = 2,815,833,007,373.49
  5. Step 5: Solve for x
    x = 2,815,833,007,373.49/1,921,379.28
  6. Step 6: Final answer
    x = 1,465,526.89

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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.