Home / 2,163,781.76-2,985,293.64-1,245,991.14

Finding the Fourth Proportional to 2,163,781.76, 2,985,293.64 and 1,245,991.14

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Solution

The fourth proportional to 2,163,781.76, 2,985,293.64 and 1,245,991.14 is: 1,719,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163,781.76 : 2,985,293.64 = 1,245,991.14 : x
  2. Step 2: Convert to fraction form
    2,163,781.76/2,985,293.64 = 1,245,991.14/x
  3. Step 3: Cross multiply
    2,163,781.76x = 2,985,293.64 × 1,245,991.14
  4. Step 4: Simplify right side
    2,163,781.76x = 3,719,649,430,410.82
  5. Step 5: Solve for x
    x = 3,719,649,430,410.82/2,163,781.76
  6. Step 6: Final answer
    x = 1,719,050.19

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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.