Home / 690,900.87-1,036,351.32-269,881.50

Finding the Fourth Proportional to 690,900.87, 1,036,351.32 and 269,881.50

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Solution

The fourth proportional to 690,900.87, 1,036,351.32 and 269,881.50 is: 404,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,900.87 : 1,036,351.32 = 269,881.50 : x
  2. Step 2: Convert to fraction form
    690,900.87/1,036,351.32 = 269,881.50/x
  3. Step 3: Cross multiply
    690,900.87x = 1,036,351.32 × 269,881.50
  4. Step 4: Simplify right side
    690,900.87x = 279,692,048,768.58
  5. Step 5: Solve for x
    x = 279,692,048,768.58/690,900.87
  6. Step 6: Final answer
    x = 404,822.26

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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.