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Finding the Fourth Proportional to 422,902.80, 633,187.80 and 329,590.80

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Solution

The fourth proportional to 422,902.80, 633,187.80 and 329,590.80 is: 493,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,902.80 : 633,187.80 = 329,590.80 : x
  2. Step 2: Convert to fraction form
    422,902.80/633,187.80 = 329,590.80/x
  3. Step 3: Cross multiply
    422,902.80x = 633,187.80 × 329,590.80
  4. Step 4: Simplify right side
    422,902.80x = 208,692,873,552.24
  5. Step 5: Solve for x
    x = 208,692,873,552.24/422,902.80
  6. Step 6: Final answer
    x = 493,477.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.