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Finding the Fourth Proportional to 518,350.72, 715,564.14 and 365,513.44

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Solution

The fourth proportional to 518,350.72, 715,564.14 and 365,513.44 is: 504,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,350.72 : 715,564.14 = 365,513.44 : x
  2. Step 2: Convert to fraction form
    518,350.72/715,564.14 = 365,513.44/x
  3. Step 3: Cross multiply
    518,350.72x = 715,564.14 × 365,513.44
  4. Step 4: Simplify right side
    518,350.72x = 261,548,310,352.04
  5. Step 5: Solve for x
    x = 261,548,310,352.04/518,350.72
  6. Step 6: Final answer
    x = 504,577.89

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1.5x scale

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.