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Finding the Fourth Proportional to 347,612.70, 521,807.85 and 324,770.70

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Solution

The fourth proportional to 347,612.70, 521,807.85 and 324,770.70 is: 487,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,612.70 : 521,807.85 = 324,770.70 : x
  2. Step 2: Convert to fraction form
    347,612.70/521,807.85 = 324,770.70/x
  3. Step 3: Cross multiply
    347,612.70x = 521,807.85 × 324,770.70
  4. Step 4: Simplify right side
    347,612.70x = 169,467,900,710.00
  5. Step 5: Solve for x
    x = 169,467,900,710.00/347,612.70
  6. Step 6: Final answer
    x = 487,519.30

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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.