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Finding the Fourth Proportional to 383,548.80, 576,014.40 and 371,107.20

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Solution

The fourth proportional to 383,548.80, 576,014.40 and 371,107.20 is: 557,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,548.80 : 576,014.40 = 371,107.20 : x
  2. Step 2: Convert to fraction form
    383,548.80/576,014.40 = 371,107.20/x
  3. Step 3: Cross multiply
    383,548.80x = 576,014.40 × 371,107.20
  4. Step 4: Simplify right side
    383,548.80x = 213,763,091,143.68
  5. Step 5: Solve for x
    x = 213,763,091,143.68/383,548.80
  6. Step 6: Final answer
    x = 557,329.58

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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.