Home / 1,980,155.87-2,732,146.75-1,120,716.13

Finding the Fourth Proportional to 1,980,155.87, 2,732,146.75 and 1,120,716.13

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Solution

The fourth proportional to 1,980,155.87, 2,732,146.75 and 1,120,716.13 is: 1,546,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,155.87 : 2,732,146.75 = 1,120,716.13 : x
  2. Step 2: Convert to fraction form
    1,980,155.87/2,732,146.75 = 1,120,716.13/x
  3. Step 3: Cross multiply
    1,980,155.87x = 2,732,146.75 × 1,120,716.13
  4. Step 4: Simplify right side
    1,980,155.87x = 3,061,960,932,252.08
  5. Step 5: Solve for x
    x = 3,061,960,932,252.08/1,980,155.87
  6. Step 6: Final answer
    x = 1,546,323.19

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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.