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Finding the Fourth Proportional to 401,512.01, 603,016.85 and 353,497.64

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Solution

The fourth proportional to 401,512.01, 603,016.85 and 353,497.64 is: 530,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,512.01 : 603,016.85 = 353,497.64 : x
  2. Step 2: Convert to fraction form
    401,512.01/603,016.85 = 353,497.64/x
  3. Step 3: Cross multiply
    401,512.01x = 603,016.85 × 353,497.64
  4. Step 4: Simplify right side
    401,512.01x = 213,165,031,223.89
  5. Step 5: Solve for x
    x = 213,165,031,223.89/401,512.01
  6. Step 6: Final answer
    x = 530,905.75

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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.