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Finding the Fourth Proportional to 570,910.74, 856,385.55 and 271,236.66

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Solution

The fourth proportional to 570,910.74, 856,385.55 and 271,236.66 is: 406,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,910.74 : 856,385.55 = 271,236.66 : x
  2. Step 2: Convert to fraction form
    570,910.74/856,385.55 = 271,236.66/x
  3. Step 3: Cross multiply
    570,910.74x = 856,385.55 × 271,236.66
  4. Step 4: Simplify right side
    570,910.74x = 232,283,156,254.26
  5. Step 5: Solve for x
    x = 232,283,156,254.26/570,910.74
  6. Step 6: Final answer
    x = 406,864.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.