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Finding the Fourth Proportional to 617,035.01, 851,505.90 and 345,101.81

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Solution

The fourth proportional to 617,035.01, 851,505.90 and 345,101.81 is: 476,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,035.01 : 851,505.90 = 345,101.81 : x
  2. Step 2: Convert to fraction form
    617,035.01/851,505.90 = 345,101.81/x
  3. Step 3: Cross multiply
    617,035.01x = 851,505.90 × 345,101.81
  4. Step 4: Simplify right side
    617,035.01x = 293,856,227,315.68
  5. Step 5: Solve for x
    x = 293,856,227,315.68/617,035.01
  6. Step 6: Final answer
    x = 476,239.15

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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.