Home / 912,972.33-1,369,190.81-343,942.88

Finding the Fourth Proportional to 912,972.33, 1,369,190.81 and 343,942.88

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Solution

The fourth proportional to 912,972.33, 1,369,190.81 and 343,942.88 is: 515,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,972.33 : 1,369,190.81 = 343,942.88 : x
  2. Step 2: Convert to fraction form
    912,972.33/1,369,190.81 = 343,942.88/x
  3. Step 3: Cross multiply
    912,972.33x = 1,369,190.81 × 343,942.88
  4. Step 4: Simplify right side
    912,972.33x = 470,923,424,474.84
  5. Step 5: Solve for x
    x = 470,923,424,474.84/912,972.33
  6. Step 6: Final answer
    x = 515,813.47

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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.