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Finding the Fourth Proportional to 535,053.96, 738,380.46 and 305,641.62

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Solution

The fourth proportional to 535,053.96, 738,380.46 and 305,641.62 is: 421,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,053.96 : 738,380.46 = 305,641.62 : x
  2. Step 2: Convert to fraction form
    535,053.96/738,380.46 = 305,641.62/x
  3. Step 3: Cross multiply
    535,053.96x = 738,380.46 × 305,641.62
  4. Step 4: Simplify right side
    535,053.96x = 225,679,799,970.75
  5. Step 5: Solve for x
    x = 225,679,799,970.75/535,053.96
  6. Step 6: Final answer
    x = 421,788.86

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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.