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Finding the Fourth Proportional to 672,486.65, 928,003.64 and 366,556.30

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Solution

The fourth proportional to 672,486.65, 928,003.64 and 366,556.30 is: 505,832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,486.65 : 928,003.64 = 366,556.30 : x
  2. Step 2: Convert to fraction form
    672,486.65/928,003.64 = 366,556.30/x
  3. Step 3: Cross multiply
    672,486.65x = 928,003.64 × 366,556.30
  4. Step 4: Simplify right side
    672,486.65x = 340,165,580,664.93
  5. Step 5: Solve for x
    x = 340,165,580,664.93/672,486.65
  6. Step 6: Final answer
    x = 505,832.47

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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.