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Finding the Fourth Proportional to 2,379,639, 3,568,117.08 and 781,773.08

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Solution

The fourth proportional to 2,379,639, 3,568,117.08 and 781,773.08 is: 1,172,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379,639 : 3,568,117.08 = 781,773.08 : x
  2. Step 2: Convert to fraction form
    2,379,639/3,568,117.08 = 781,773.08/x
  3. Step 3: Cross multiply
    2,379,639x = 3,568,117.08 × 781,773.08
  4. Step 4: Simplify right side
    2,379,639x = 2,789,457,879,432.21
  5. Step 5: Solve for x
    x = 2,789,457,879,432.21/2,379,639
  6. Step 6: Final answer
    x = 1,172,218.93

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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.