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Finding the Fourth Proportional to 672,486.72, 928,003.72 and 366,556.36

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Solution

The fourth proportional to 672,486.72, 928,003.72 and 366,556.36 is: 505,832.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,486.72 : 928,003.72 = 366,556.36 : x
  2. Step 2: Convert to fraction form
    672,486.72/928,003.72 = 366,556.36/x
  3. Step 3: Cross multiply
    672,486.72x = 928,003.72 × 366,556.36
  4. Step 4: Simplify right side
    672,486.72x = 340,165,665,669.66
  5. Step 5: Solve for x
    x = 340,165,665,669.66/672,486.72
  6. Step 6: Final answer
    x = 505,832.54

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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.