Home / 1,942,343.40-2,912,478.30-819,143.40

Finding the Fourth Proportional to 1,942,343.40, 2,912,478.30 and 819,143.40

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Solution

The fourth proportional to 1,942,343.40, 2,912,478.30 and 819,143.40 is: 1,228,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,343.40 : 2,912,478.30 = 819,143.40 : x
  2. Step 2: Convert to fraction form
    1,942,343.40/2,912,478.30 = 819,143.40/x
  3. Step 3: Cross multiply
    1,942,343.40x = 2,912,478.30 × 819,143.40
  4. Step 4: Simplify right side
    1,942,343.40x = 2,385,737,377,088.22
  5. Step 5: Solve for x
    x = 2,385,737,377,088.22/1,942,343.40
  6. Step 6: Final answer
    x = 1,228,277.85

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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.