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Finding the Fourth Proportional to 617,181.21, 851,748.21 and 345,267.39

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Solution

The fourth proportional to 617,181.21, 851,748.21 and 345,267.39 is: 476,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,181.21 : 851,748.21 = 345,267.39 : x
  2. Step 2: Convert to fraction form
    617,181.21/851,748.21 = 345,267.39/x
  3. Step 3: Cross multiply
    617,181.21x = 851,748.21 × 345,267.39
  4. Step 4: Simplify right side
    617,181.21x = 294,080,881,403.87
  5. Step 5: Solve for x
    x = 294,080,881,403.87/617,181.21
  6. Step 6: Final answer
    x = 476,490.33

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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.