Home / 1,917,086.20-2,872,130.10-1,168,257.40

Finding the Fourth Proportional to 1,917,086.20, 2,872,130.10 and 1,168,257.40

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Solution

The fourth proportional to 1,917,086.20, 2,872,130.10 and 1,168,257.40 is: 1,750,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,086.20 : 2,872,130.10 = 1,168,257.40 : x
  2. Step 2: Convert to fraction form
    1,917,086.20/2,872,130.10 = 1,168,257.40/x
  3. Step 3: Cross multiply
    1,917,086.20x = 2,872,130.10 × 1,168,257.40
  4. Step 4: Simplify right side
    1,917,086.20x = 3,355,387,243,087.74
  5. Step 5: Solve for x
    x = 3,355,387,243,087.74/1,917,086.20
  6. Step 6: Final answer
    x = 1,750,253.71

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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.