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Finding the Fourth Proportional to 518,351.72, 715,565.52 and 365,514.44

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Solution

The fourth proportional to 518,351.72, 715,565.52 and 365,514.44 is: 504,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,351.72 : 715,565.52 = 365,514.44 : x
  2. Step 2: Convert to fraction form
    518,351.72/715,565.52 = 365,514.44/x
  3. Step 3: Cross multiply
    518,351.72x = 715,565.52 × 365,514.44
  4. Step 4: Simplify right side
    518,351.72x = 261,549,530,326.11
  5. Step 5: Solve for x
    x = 261,549,530,326.11/518,351.72
  6. Step 6: Final answer
    x = 504,579.27

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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.