Home / 1,949,342.97-2,688,943.50-1,222,929.55

Finding the Fourth Proportional to 1,949,342.97, 2,688,943.50 and 1,222,929.55

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Solution

The fourth proportional to 1,949,342.97, 2,688,943.50 and 1,222,929.55 is: 1,686,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,342.97 : 2,688,943.50 = 1,222,929.55 : x
  2. Step 2: Convert to fraction form
    1,949,342.97/2,688,943.50 = 1,222,929.55/x
  3. Step 3: Cross multiply
    1,949,342.97x = 2,688,943.50 × 1,222,929.55
  4. Step 4: Simplify right side
    1,949,342.97x = 3,288,388,474,210.11
  5. Step 5: Solve for x
    x = 3,288,388,474,210.11/1,949,342.97
  6. Step 6: Final answer
    x = 1,686,921.45

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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.