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Finding the Fourth Proportional to 606,078.72, 909,057.60 and 185,358.24

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Solution

The fourth proportional to 606,078.72, 909,057.60 and 185,358.24 is: 278,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,078.72 : 909,057.60 = 185,358.24 : x
  2. Step 2: Convert to fraction form
    606,078.72/909,057.60 = 185,358.24/x
  3. Step 3: Cross multiply
    606,078.72x = 909,057.60 × 185,358.24
  4. Step 4: Simplify right side
    606,078.72x = 168,501,316,794.62
  5. Step 5: Solve for x
    x = 168,501,316,794.62/606,078.72
  6. Step 6: Final answer
    x = 278,018.86

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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.