Home / 725,811.60-1,086,643.80-642,867.60

Finding the Fourth Proportional to 725,811.60, 1,086,643.80 and 642,867.60

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Solution

The fourth proportional to 725,811.60, 1,086,643.80 and 642,867.60 is: 962,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,811.60 : 1,086,643.80 = 642,867.60 : x
  2. Step 2: Convert to fraction form
    725,811.60/1,086,643.80 = 642,867.60/x
  3. Step 3: Cross multiply
    725,811.60x = 1,086,643.80 × 642,867.60
  4. Step 4: Simplify right side
    725,811.60x = 698,568,091,760.88
  5. Step 5: Solve for x
    x = 698,568,091,760.88/725,811.60
  6. Step 6: Final answer
    x = 962,464.77

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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.