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Finding the Fourth Proportional to 3,885,280.65, 5,827,920.98 and 2,940,496.65

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Solution

The fourth proportional to 3,885,280.65, 5,827,920.98 and 2,940,496.65 is: 4,410,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885,280.65 : 5,827,920.98 = 2,940,496.65 : x
  2. Step 2: Convert to fraction form
    3,885,280.65/5,827,920.98 = 2,940,496.65/x
  3. Step 3: Cross multiply
    3,885,280.65x = 5,827,920.98 × 2,940,496.65
  4. Step 4: Simplify right side
    3,885,280.65x = 17,136,982,103,452.23
  5. Step 5: Solve for x
    x = 17,136,982,103,452.23/3,885,280.65
  6. Step 6: Final answer
    x = 4,410,744.98

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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.