Home / 1,915,205.16-2,643,001.56-1,055,796.42

Finding the Fourth Proportional to 1,915,205.16, 2,643,001.56 and 1,055,796.42

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Solution

The fourth proportional to 1,915,205.16, 2,643,001.56 and 1,055,796.42 is: 1,457,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,205.16 : 2,643,001.56 = 1,055,796.42 : x
  2. Step 2: Convert to fraction form
    1,915,205.16/2,643,001.56 = 1,055,796.42/x
  3. Step 3: Cross multiply
    1,915,205.16x = 2,643,001.56 × 1,055,796.42
  4. Step 4: Simplify right side
    1,915,205.16x = 2,790,471,585,102.42
  5. Step 5: Solve for x
    x = 2,790,471,585,102.42/1,915,205.16
  6. Step 6: Final answer
    x = 1,457,009.22

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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.