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Finding the Fourth Proportional to 664,513.78, 917,029.04 and 362,707.78

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Solution

The fourth proportional to 664,513.78, 917,029.04 and 362,707.78 is: 500,536.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,513.78 : 917,029.04 = 362,707.78 : x
  2. Step 2: Convert to fraction form
    664,513.78/917,029.04 = 362,707.78/x
  3. Step 3: Cross multiply
    664,513.78x = 917,029.04 × 362,707.78
  4. Step 4: Simplify right side
    664,513.78x = 332,613,567,293.93
  5. Step 5: Solve for x
    x = 332,613,567,293.93/664,513.78
  6. Step 6: Final answer
    x = 500,536.75

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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.