Home / 1,942,927.80-2,912,253.30-680,105.40

Finding the Fourth Proportional to 1,942,927.80, 2,912,253.30 and 680,105.40

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Solution

The fourth proportional to 1,942,927.80, 2,912,253.30 and 680,105.40 is: 1,019,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,927.80 : 2,912,253.30 = 680,105.40 : x
  2. Step 2: Convert to fraction form
    1,942,927.80/2,912,253.30 = 680,105.40/x
  3. Step 3: Cross multiply
    1,942,927.80x = 2,912,253.30 × 680,105.40
  4. Step 4: Simplify right side
    1,942,927.80x = 1,980,639,195,497.82
  5. Step 5: Solve for x
    x = 1,980,639,195,497.82/1,942,927.80
  6. Step 6: Final answer
    x = 1,019,409.57

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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.