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Finding the Fourth Proportional to 472,906.60, 709,359.90 and 413,857.60

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Solution

The fourth proportional to 472,906.60, 709,359.90 and 413,857.60 is: 620,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,906.60 : 709,359.90 = 413,857.60 : x
  2. Step 2: Convert to fraction form
    472,906.60/709,359.90 = 413,857.60/x
  3. Step 3: Cross multiply
    472,906.60x = 709,359.90 × 413,857.60
  4. Step 4: Simplify right side
    472,906.60x = 293,573,985,750.24
  5. Step 5: Solve for x
    x = 293,573,985,750.24/472,906.60
  6. Step 6: Final answer
    x = 620,786.40

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Similar ratio
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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.