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Finding the Fourth Proportional to 412,950.20, 620,807.70 and 352,124.60

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Solution

The fourth proportional to 412,950.20, 620,807.70 and 352,124.60 is: 529,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,950.20 : 620,807.70 = 352,124.60 : x
  2. Step 2: Convert to fraction form
    412,950.20/620,807.70 = 352,124.60/x
  3. Step 3: Cross multiply
    412,950.20x = 620,807.70 × 352,124.60
  4. Step 4: Simplify right side
    412,950.20x = 218,601,663,039.42
  5. Step 5: Solve for x
    x = 218,601,663,039.42/412,950.20
  6. Step 6: Final answer
    x = 529,365.68

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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.