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Finding the Fourth Proportional to 647,231.28, 970,173.35 and 362,504.36

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Solution

The fourth proportional to 647,231.28, 970,173.35 and 362,504.36 is: 543,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,231.28 : 970,173.35 = 362,504.36 : x
  2. Step 2: Convert to fraction form
    647,231.28/970,173.35 = 362,504.36/x
  3. Step 3: Cross multiply
    647,231.28x = 970,173.35 × 362,504.36
  4. Step 4: Simplify right side
    647,231.28x = 351,692,071,303.11
  5. Step 5: Solve for x
    x = 351,692,071,303.11/647,231.28
  6. Step 6: Final answer
    x = 543,379.29

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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.