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Finding the Fourth Proportional to 647,271.10, 970,906.65 and 423,322.30

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Solution

The fourth proportional to 647,271.10, 970,906.65 and 423,322.30 is: 634,983.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,271.10 : 970,906.65 = 423,322.30 : x
  2. Step 2: Convert to fraction form
    647,271.10/970,906.65 = 423,322.30/x
  3. Step 3: Cross multiply
    647,271.10x = 970,906.65 × 423,322.30
  4. Step 4: Simplify right side
    647,271.10x = 411,006,436,163.30
  5. Step 5: Solve for x
    x = 411,006,436,163.30/647,271.10
  6. Step 6: Final answer
    x = 634,983.45

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Similar ratio
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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.