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Finding the Fourth Proportional to 617,971.75, 852,729.22 and 359,905.09

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Solution

The fourth proportional to 617,971.75, 852,729.22 and 359,905.09 is: 496,627.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,971.75 : 852,729.22 = 359,905.09 : x
  2. Step 2: Convert to fraction form
    617,971.75/852,729.22 = 359,905.09/x
  3. Step 3: Cross multiply
    617,971.75x = 852,729.22 × 359,905.09
  4. Step 4: Simplify right side
    617,971.75x = 306,901,586,669.73
  5. Step 5: Solve for x
    x = 306,901,586,669.73/617,971.75
  6. Step 6: Final answer
    x = 496,627.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.