Home / 1,271,417.96-1,906,917.32-418,500.72

Finding the Fourth Proportional to 1,271,417.96, 1,906,917.32 and 418,500.72

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Solution

The fourth proportional to 1,271,417.96, 1,906,917.32 and 418,500.72 is: 627,682.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,417.96 : 1,906,917.32 = 418,500.72 : x
  2. Step 2: Convert to fraction form
    1,271,417.96/1,906,917.32 = 418,500.72/x
  3. Step 3: Cross multiply
    1,271,417.96x = 1,906,917.32 × 418,500.72
  4. Step 4: Simplify right side
    1,271,417.96x = 798,046,271,400.47
  5. Step 5: Solve for x
    x = 798,046,271,400.47/1,271,417.96
  6. Step 6: Final answer
    x = 627,682.08

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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.