Home / 1,681,157-2,318,378.28-1,131,111.92

Finding the Fourth Proportional to 1,681,157, 2,318,378.28 and 1,131,111.92

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Solution

The fourth proportional to 1,681,157, 2,318,378.28 and 1,131,111.92 is: 1,559,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,157 : 2,318,378.28 = 1,131,111.92 : x
  2. Step 2: Convert to fraction form
    1,681,157/2,318,378.28 = 1,131,111.92/x
  3. Step 3: Cross multiply
    1,681,157x = 2,318,378.28 × 1,131,111.92
  4. Step 4: Simplify right side
    1,681,157x = 2,622,345,307,577.10
  5. Step 5: Solve for x
    x = 2,622,345,307,577.10/1,681,157
  6. Step 6: Final answer
    x = 1,559,845.58

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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.