Home / 2,109,661.29-2,911,346.60-1,142,791.62

Finding the Fourth Proportional to 2,109,661.29, 2,911,346.60 and 1,142,791.62

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Solution

The fourth proportional to 2,109,661.29, 2,911,346.60 and 1,142,791.62 is: 1,577,060.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,661.29 : 2,911,346.60 = 1,142,791.62 : x
  2. Step 2: Convert to fraction form
    2,109,661.29/2,911,346.60 = 1,142,791.62/x
  3. Step 3: Cross multiply
    2,109,661.29x = 2,911,346.60 × 1,142,791.62
  4. Step 4: Simplify right side
    2,109,661.29x = 3,327,062,491,681.53
  5. Step 5: Solve for x
    x = 3,327,062,491,681.53/2,109,661.29
  6. Step 6: Final answer
    x = 1,577,060.03

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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.