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Finding the Fourth Proportional to 617,755.36, 852,460.71 and 342,093.43

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Solution

The fourth proportional to 617,755.36, 852,460.71 and 342,093.43 is: 472,065.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,755.36 : 852,460.71 = 342,093.43 : x
  2. Step 2: Convert to fraction form
    617,755.36/852,460.71 = 342,093.43/x
  3. Step 3: Cross multiply
    617,755.36x = 852,460.71 × 342,093.43
  4. Step 4: Simplify right side
    617,755.36x = 291,621,203,211.77
  5. Step 5: Solve for x
    x = 291,621,203,211.77/617,755.36
  6. Step 6: Final answer
    x = 472,065.84

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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.