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Finding the Fourth Proportional to 478,394.19, 660,180.92 and 263,529.27

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Solution

The fourth proportional to 478,394.19, 660,180.92 and 263,529.27 is: 363,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,394.19 : 660,180.92 = 263,529.27 : x
  2. Step 2: Convert to fraction form
    478,394.19/660,180.92 = 263,529.27/x
  3. Step 3: Cross multiply
    478,394.19x = 660,180.92 × 263,529.27
  4. Step 4: Simplify right side
    478,394.19x = 173,976,994,597.88
  5. Step 5: Solve for x
    x = 173,976,994,597.88/478,394.19
  6. Step 6: Final answer
    x = 363,668.70

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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.