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Finding the Fourth Proportional to 535,195.48, 738,454.14 and 308,709.76

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Solution

The fourth proportional to 535,195.48, 738,454.14 and 308,709.76 is: 425,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,195.48 : 738,454.14 = 308,709.76 : x
  2. Step 2: Convert to fraction form
    535,195.48/738,454.14 = 308,709.76/x
  3. Step 3: Cross multiply
    535,195.48x = 738,454.14 × 308,709.76
  4. Step 4: Simplify right side
    535,195.48x = 227,968,000,330.41
  5. Step 5: Solve for x
    x = 227,968,000,330.41/535,195.48
  6. Step 6: Final answer
    x = 425,952.78

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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.