Home / 647,844.14-971,952.97-198,631.30

Finding the Fourth Proportional to 647,844.14, 971,952.97 and 198,631.30

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Solution

The fourth proportional to 647,844.14, 971,952.97 and 198,631.30 is: 298,004.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,844.14 : 971,952.97 = 198,631.30 : x
  2. Step 2: Convert to fraction form
    647,844.14/971,952.97 = 198,631.30/x
  3. Step 3: Cross multiply
    647,844.14x = 971,952.97 × 198,631.30
  4. Step 4: Simplify right side
    647,844.14x = 193,060,281,969.96
  5. Step 5: Solve for x
    x = 193,060,281,969.96/647,844.14
  6. Step 6: Final answer
    x = 298,004.21

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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.