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Finding the Fourth Proportional to 519,005.20, 778,507.80 and 182,425.90

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Solution

The fourth proportional to 519,005.20, 778,507.80 and 182,425.90 is: 273,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,005.20 : 778,507.80 = 182,425.90 : x
  2. Step 2: Convert to fraction form
    519,005.20/778,507.80 = 182,425.90/x
  3. Step 3: Cross multiply
    519,005.20x = 778,507.80 × 182,425.90
  4. Step 4: Simplify right side
    519,005.20x = 142,019,986,072.02
  5. Step 5: Solve for x
    x = 142,019,986,072.02/519,005.20
  6. Step 6: Final answer
    x = 273,638.85

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Similar ratio
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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.