Home / 751,765.92-1,128,611.17-645,827.64

Finding the Fourth Proportional to 751,765.92, 1,128,611.17 and 645,827.64

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Solution

The fourth proportional to 751,765.92, 1,128,611.17 and 645,827.64 is: 969,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,765.92 : 1,128,611.17 = 645,827.64 : x
  2. Step 2: Convert to fraction form
    751,765.92/1,128,611.17 = 645,827.64/x
  3. Step 3: Cross multiply
    751,765.92x = 1,128,611.17 × 645,827.64
  4. Step 4: Simplify right side
    751,765.92x = 728,888,286,784.17
  5. Step 5: Solve for x
    x = 728,888,286,784.17/751,765.92
  6. Step 6: Final answer
    x = 969,568.14

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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.