Home / 1,221,277.50-1,685,371.12-677,422.54

Finding the Fourth Proportional to 1,221,277.50, 1,685,371.12 and 677,422.54

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Solution

The fourth proportional to 1,221,277.50, 1,685,371.12 and 677,422.54 is: 934,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,277.50 : 1,685,371.12 = 677,422.54 : x
  2. Step 2: Convert to fraction form
    1,221,277.50/1,685,371.12 = 677,422.54/x
  3. Step 3: Cross multiply
    1,221,277.50x = 1,685,371.12 × 677,422.54
  4. Step 4: Simplify right side
    1,221,277.50x = 1,141,708,385,366.20
  5. Step 5: Solve for x
    x = 1,141,708,385,366.20/1,221,277.50
  6. Step 6: Final answer
    x = 934,847.64

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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.