Home / 809,736.30-1,213,638.12-376,871.28

Finding the Fourth Proportional to 809,736.30, 1,213,638.12 and 376,871.28

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Solution

The fourth proportional to 809,736.30, 1,213,638.12 and 376,871.28 is: 564,857.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,736.30 : 1,213,638.12 = 376,871.28 : x
  2. Step 2: Convert to fraction form
    809,736.30/1,213,638.12 = 376,871.28/x
  3. Step 3: Cross multiply
    809,736.30x = 1,213,638.12 × 376,871.28
  4. Step 4: Simplify right side
    809,736.30x = 457,385,351,741.19
  5. Step 5: Solve for x
    x = 457,385,351,741.19/809,736.30
  6. Step 6: Final answer
    x = 564,857.17

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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.