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Finding the Fourth Proportional to 401,512.76, 603,017.98 and 353,498.39

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Solution

The fourth proportional to 401,512.76, 603,017.98 and 353,498.39 is: 530,906.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,512.76 : 603,017.98 = 353,498.39 : x
  2. Step 2: Convert to fraction form
    401,512.76/603,017.98 = 353,498.39/x
  3. Step 3: Cross multiply
    401,512.76x = 603,017.98 × 353,498.39
  4. Step 4: Simplify right side
    401,512.76x = 213,165,881,172.22
  5. Step 5: Solve for x
    x = 213,165,881,172.22/401,512.76
  6. Step 6: Final answer
    x = 530,906.87

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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.