Home / 1,943,423.80-2,912,997.30-680,601.40

Finding the Fourth Proportional to 1,943,423.80, 2,912,997.30 and 680,601.40

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Solution

The fourth proportional to 1,943,423.80, 2,912,997.30 and 680,601.40 is: 1,020,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,423.80 : 2,912,997.30 = 680,601.40 : x
  2. Step 2: Convert to fraction form
    1,943,423.80/2,912,997.30 = 680,601.40/x
  3. Step 3: Cross multiply
    1,943,423.80x = 2,912,997.30 × 680,601.40
  4. Step 4: Simplify right side
    1,943,423.80x = 1,982,590,040,576.22
  5. Step 5: Solve for x
    x = 1,982,590,040,576.22/1,943,423.80
  6. Step 6: Final answer
    x = 1,020,153.22

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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.