Home / 905,965.27-1,355,990.81-666,015.65

Finding the Fourth Proportional to 905,965.27, 1,355,990.81 and 666,015.65

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Solution

The fourth proportional to 905,965.27, 1,355,990.81 and 666,015.65 is: 996,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,965.27 : 1,355,990.81 = 666,015.65 : x
  2. Step 2: Convert to fraction form
    905,965.27/1,355,990.81 = 666,015.65/x
  3. Step 3: Cross multiply
    905,965.27x = 1,355,990.81 × 666,015.65
  4. Step 4: Simplify right side
    905,965.27x = 903,111,099,437.45
  5. Step 5: Solve for x
    x = 903,111,099,437.45/905,965.27
  6. Step 6: Final answer
    x = 996,849.58

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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.