Home / 1,228,117.10-1,842,175.65-1,121,828.90

Finding the Fourth Proportional to 1,228,117.10, 1,842,175.65 and 1,121,828.90

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Solution

The fourth proportional to 1,228,117.10, 1,842,175.65 and 1,121,828.90 is: 1,682,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,117.10 : 1,842,175.65 = 1,121,828.90 : x
  2. Step 2: Convert to fraction form
    1,228,117.10/1,842,175.65 = 1,121,828.90/x
  3. Step 3: Cross multiply
    1,228,117.10x = 1,842,175.65 × 1,121,828.90
  4. Step 4: Simplify right side
    1,228,117.10x = 2,066,605,883,046.28
  5. Step 5: Solve for x
    x = 2,066,605,883,046.28/1,228,117.10
  6. Step 6: Final answer
    x = 1,682,743.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.