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Finding the Fourth Proportional to 625,297.96, 862,954.97 and 353,390.98

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Solution

The fourth proportional to 625,297.96, 862,954.97 and 353,390.98 is: 487,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,297.96 : 862,954.97 = 353,390.98 : x
  2. Step 2: Convert to fraction form
    625,297.96/862,954.97 = 353,390.98/x
  3. Step 3: Cross multiply
    625,297.96x = 862,954.97 × 353,390.98
  4. Step 4: Simplify right side
    625,297.96x = 304,960,503,219.61
  5. Step 5: Solve for x
    x = 304,960,503,219.61/625,297.96
  6. Step 6: Final answer
    x = 487,704.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.