Home / 751,768.43-1,128,615.32-645,830.15

Finding the Fourth Proportional to 751,768.43, 1,128,615.32 and 645,830.15

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Solution

The fourth proportional to 751,768.43, 1,128,615.32 and 645,830.15 is: 969,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,768.43 : 1,128,615.32 = 645,830.15 : x
  2. Step 2: Convert to fraction form
    751,768.43/1,128,615.32 = 645,830.15/x
  3. Step 3: Cross multiply
    751,768.43x = 1,128,615.32 × 645,830.15
  4. Step 4: Simplify right side
    751,768.43x = 728,893,797,379.40
  5. Step 5: Solve for x
    x = 728,893,797,379.40/751,768.43
  6. Step 6: Final answer
    x = 969,572.24

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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.