Home / 751,540.78-1,037,128.56-407,377.15

Finding the Fourth Proportional to 751,540.78, 1,037,128.56 and 407,377.15

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Solution

The fourth proportional to 751,540.78, 1,037,128.56 and 407,377.15 is: 562,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,540.78 : 1,037,128.56 = 407,377.15 : x
  2. Step 2: Convert to fraction form
    751,540.78/1,037,128.56 = 407,377.15/x
  3. Step 3: Cross multiply
    751,540.78x = 1,037,128.56 × 407,377.15
  4. Step 4: Simplify right side
    751,540.78x = 422,502,472,835.92
  5. Step 5: Solve for x
    x = 422,502,472,835.92/751,540.78
  6. Step 6: Final answer
    x = 562,181.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.