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Finding the Fourth Proportional to 551,269.76, 760,819.56 and 309,562.52

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Solution

The fourth proportional to 551,269.76, 760,819.56 and 309,562.52 is: 427,234.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,269.76 : 760,819.56 = 309,562.52 : x
  2. Step 2: Convert to fraction form
    551,269.76/760,819.56 = 309,562.52/x
  3. Step 3: Cross multiply
    551,269.76x = 760,819.56 × 309,562.52
  4. Step 4: Simplify right side
    551,269.76x = 235,521,220,258.89
  5. Step 5: Solve for x
    x = 235,521,220,258.89/551,269.76
  6. Step 6: Final answer
    x = 427,234.06

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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.