Home / 1,942,349.40-2,912,487.30-819,149.40

Finding the Fourth Proportional to 1,942,349.40, 2,912,487.30 and 819,149.40

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Solution

The fourth proportional to 1,942,349.40, 2,912,487.30 and 819,149.40 is: 1,228,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,349.40 : 2,912,487.30 = 819,149.40 : x
  2. Step 2: Convert to fraction form
    1,942,349.40/2,912,487.30 = 819,149.40/x
  3. Step 3: Cross multiply
    1,942,349.40x = 2,912,487.30 × 819,149.40
  4. Step 4: Simplify right side
    1,942,349.40x = 2,385,762,224,302.62
  5. Step 5: Solve for x
    x = 2,385,762,224,302.62/1,942,349.40
  6. Step 6: Final answer
    x = 1,228,286.85

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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.