Home / 808,528.30-1,212,796.05-209,446.90

Finding the Fourth Proportional to 808,528.30, 1,212,796.05 and 209,446.90

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Solution

The fourth proportional to 808,528.30, 1,212,796.05 and 209,446.90 is: 314,171.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,528.30 : 1,212,796.05 = 209,446.90 : x
  2. Step 2: Convert to fraction form
    808,528.30/1,212,796.05 = 209,446.90/x
  3. Step 3: Cross multiply
    808,528.30x = 1,212,796.05 × 209,446.90
  4. Step 4: Simplify right side
    808,528.30x = 254,016,373,004.75
  5. Step 5: Solve for x
    x = 254,016,373,004.75/808,528.30
  6. Step 6: Final answer
    x = 314,171.28

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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.