Home / 751,766.10-1,128,611.45-645,827.82

Finding the Fourth Proportional to 751,766.10, 1,128,611.45 and 645,827.82

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Solution

The fourth proportional to 751,766.10, 1,128,611.45 and 645,827.82 is: 969,568.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,766.10 : 1,128,611.45 = 645,827.82 : x
  2. Step 2: Convert to fraction form
    751,766.10/1,128,611.45 = 645,827.82/x
  3. Step 3: Cross multiply
    751,766.10x = 1,128,611.45 × 645,827.82
  4. Step 4: Simplify right side
    751,766.10x = 728,888,677,469.08
  5. Step 5: Solve for x
    x = 728,888,677,469.08/751,766.10
  6. Step 6: Final answer
    x = 969,568.42

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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.