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Finding the Fourth Proportional to 383,847.80, 576,462.90 and 371,406.20

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Solution

The fourth proportional to 383,847.80, 576,462.90 and 371,406.20 is: 557,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,847.80 : 576,462.90 = 371,406.20 : x
  2. Step 2: Convert to fraction form
    383,847.80/576,462.90 = 371,406.20/x
  3. Step 3: Cross multiply
    383,847.80x = 576,462.90 × 371,406.20
  4. Step 4: Simplify right side
    383,847.80x = 214,101,895,129.98
  5. Step 5: Solve for x
    x = 214,101,895,129.98/383,847.80
  6. Step 6: Final answer
    x = 557,778.10

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1.5x scale

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.