Home / 3,121,569.87-4,308,314.58-1,815,226.17

Finding the Fourth Proportional to 3,121,569.87, 4,308,314.58 and 1,815,226.17

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Solution

The fourth proportional to 3,121,569.87, 4,308,314.58 and 1,815,226.17 is: 2,505,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,569.87 : 4,308,314.58 = 1,815,226.17 : x
  2. Step 2: Convert to fraction form
    3,121,569.87/4,308,314.58 = 1,815,226.17/x
  3. Step 3: Cross multiply
    3,121,569.87x = 4,308,314.58 × 1,815,226.17
  4. Step 4: Simplify right side
    3,121,569.87x = 7,820,565,374,208.56
  5. Step 5: Solve for x
    x = 7,820,565,374,208.56/3,121,569.87
  6. Step 6: Final answer
    x = 2,505,330.88

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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.