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Finding the Fourth Proportional to 519,667.80, 779,523.52 and 253,652.05

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Solution

The fourth proportional to 519,667.80, 779,523.52 and 253,652.05 is: 380,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,667.80 : 779,523.52 = 253,652.05 : x
  2. Step 2: Convert to fraction form
    519,667.80/779,523.52 = 253,652.05/x
  3. Step 3: Cross multiply
    519,667.80x = 779,523.52 × 253,652.05
  4. Step 4: Simplify right side
    519,667.80x = 197,727,738,871.22
  5. Step 5: Solve for x
    x = 197,727,738,871.22/519,667.80
  6. Step 6: Final answer
    x = 380,488.73

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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.