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Finding the Fourth Proportional to 401,008.12, 601,803.54 and 323,063.80

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Solution

The fourth proportional to 401,008.12, 601,803.54 and 323,063.80 is: 484,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,008.12 : 601,803.54 = 323,063.80 : x
  2. Step 2: Convert to fraction form
    401,008.12/601,803.54 = 323,063.80/x
  3. Step 3: Cross multiply
    401,008.12x = 601,803.54 × 323,063.80
  4. Step 4: Simplify right side
    401,008.12x = 194,420,938,485.85
  5. Step 5: Solve for x
    x = 194,420,938,485.85/401,008.12
  6. Step 6: Final answer
    x = 484,830.43

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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.