Home / 751,775.97-1,128,224.40-302,500.65

Finding the Fourth Proportional to 751,775.97, 1,128,224.40 and 302,500.65

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Solution

The fourth proportional to 751,775.97, 1,128,224.40 and 302,500.65 is: 453,976.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,775.97 : 1,128,224.40 = 302,500.65 : x
  2. Step 2: Convert to fraction form
    751,775.97/1,128,224.40 = 302,500.65/x
  3. Step 3: Cross multiply
    751,775.97x = 1,128,224.40 × 302,500.65
  4. Step 4: Simplify right side
    751,775.97x = 341,288,614,345.86
  5. Step 5: Solve for x
    x = 341,288,614,345.86/751,775.97
  6. Step 6: Final answer
    x = 453,976.49

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Double scale
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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.