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Finding the Fourth Proportional to 617,199.37, 851,700.88 and 345,214.72

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Solution

The fourth proportional to 617,199.37, 851,700.88 and 345,214.72 is: 476,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,199.37 : 851,700.88 = 345,214.72 : x
  2. Step 2: Convert to fraction form
    617,199.37/851,700.88 = 345,214.72/x
  3. Step 3: Cross multiply
    617,199.37x = 851,700.88 × 345,214.72
  4. Step 4: Simplify right side
    617,199.37x = 294,019,680,812.95
  5. Step 5: Solve for x
    x = 294,019,680,812.95/617,199.37
  6. Step 6: Final answer
    x = 476,377.16

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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.