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Finding the Fourth Proportional to 413,807.60, 620,711.40 and 164,489.60

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Solution

The fourth proportional to 413,807.60, 620,711.40 and 164,489.60 is: 246,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,807.60 : 620,711.40 = 164,489.60 : x
  2. Step 2: Convert to fraction form
    413,807.60/620,711.40 = 164,489.60/x
  3. Step 3: Cross multiply
    413,807.60x = 620,711.40 × 164,489.60
  4. Step 4: Simplify right side
    413,807.60x = 102,100,569,901.44
  5. Step 5: Solve for x
    x = 102,100,569,901.44/413,807.60
  6. Step 6: Final answer
    x = 246,734.40

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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.