Home / 1,942,802.72-2,912,439.89-679,941.44

Finding the Fourth Proportional to 1,942,802.72, 2,912,439.89 and 679,941.44

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Solution

The fourth proportional to 1,942,802.72, 2,912,439.89 and 679,941.44 is: 1,019,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,802.72 : 2,912,439.89 = 679,941.44 : x
  2. Step 2: Convert to fraction form
    1,942,802.72/2,912,439.89 = 679,941.44/x
  3. Step 3: Cross multiply
    1,942,802.72x = 2,912,439.89 × 679,941.44
  4. Step 4: Simplify right side
    1,942,802.72x = 1,980,288,554,758.14
  5. Step 5: Solve for x
    x = 1,980,288,554,758.14/1,942,802.72
  6. Step 6: Final answer
    x = 1,019,294.72

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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.