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Finding the Fourth Proportional to 517,080.30, 775,620.45 and 349,118.70

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Solution

The fourth proportional to 517,080.30, 775,620.45 and 349,118.70 is: 523,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,080.30 : 775,620.45 = 349,118.70 : x
  2. Step 2: Convert to fraction form
    517,080.30/775,620.45 = 349,118.70/x
  3. Step 3: Cross multiply
    517,080.30x = 775,620.45 × 349,118.70
  4. Step 4: Simplify right side
    517,080.30x = 270,783,603,197.42
  5. Step 5: Solve for x
    x = 270,783,603,197.42/517,080.30
  6. Step 6: Final answer
    x = 523,678.05

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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.