Home / 690,907.86-1,036,361.80-269,888.49

Finding the Fourth Proportional to 690,907.86, 1,036,361.80 and 269,888.49

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Solution

The fourth proportional to 690,907.86, 1,036,361.80 and 269,888.49 is: 404,832.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,907.86 : 1,036,361.80 = 269,888.49 : x
  2. Step 2: Convert to fraction form
    690,907.86/1,036,361.80 = 269,888.49/x
  3. Step 3: Cross multiply
    690,907.86x = 1,036,361.80 × 269,888.49
  4. Step 4: Simplify right side
    690,907.86x = 279,702,121,295.68
  5. Step 5: Solve for x
    x = 279,702,121,295.68/690,907.86
  6. Step 6: Final answer
    x = 404,832.74

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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.