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Finding the Fourth Proportional to 479,008.64, 718,512.92 and 268,662.98

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Solution

The fourth proportional to 479,008.64, 718,512.92 and 268,662.98 is: 402,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,008.64 : 718,512.92 = 268,662.98 : x
  2. Step 2: Convert to fraction form
    479,008.64/718,512.92 = 268,662.98/x
  3. Step 3: Cross multiply
    479,008.64x = 718,512.92 × 268,662.98
  4. Step 4: Simplify right side
    479,008.64x = 193,037,822,255.70
  5. Step 5: Solve for x
    x = 193,037,822,255.70/479,008.64
  6. Step 6: Final answer
    x = 402,994.45

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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.