Home / 1,025,998.30-1,415,682.75-643,852.86

Finding the Fourth Proportional to 1,025,998.30, 1,415,682.75 and 643,852.86

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Solution

The fourth proportional to 1,025,998.30, 1,415,682.75 and 643,852.86 is: 888,394.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,998.30 : 1,415,682.75 = 643,852.86 : x
  2. Step 2: Convert to fraction form
    1,025,998.30/1,415,682.75 = 643,852.86/x
  3. Step 3: Cross multiply
    1,025,998.30x = 1,415,682.75 × 643,852.86
  4. Step 4: Simplify right side
    1,025,998.30x = 911,491,387,440.17
  5. Step 5: Solve for x
    x = 911,491,387,440.17/1,025,998.30
  6. Step 6: Final answer
    x = 888,394.64

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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.