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Finding the Fourth Proportional to 401,080.80, 601,621.20 and 322,348.80

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Solution

The fourth proportional to 401,080.80, 601,621.20 and 322,348.80 is: 483,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,080.80 : 601,621.20 = 322,348.80 : x
  2. Step 2: Convert to fraction form
    401,080.80/601,621.20 = 322,348.80/x
  3. Step 3: Cross multiply
    401,080.80x = 601,621.20 × 322,348.80
  4. Step 4: Simplify right side
    401,080.80x = 193,931,871,874.56
  5. Step 5: Solve for x
    x = 193,931,871,874.56/401,080.80
  6. Step 6: Final answer
    x = 483,523.20

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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.