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Finding the Fourth Proportional to 535,076.04, 738,410.99 and 305,663.69

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Solution

The fourth proportional to 535,076.04, 738,410.99 and 305,663.69 is: 421,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,076.04 : 738,410.99 = 305,663.69 : x
  2. Step 2: Convert to fraction form
    535,076.04/738,410.99 = 305,663.69/x
  3. Step 3: Cross multiply
    535,076.04x = 738,410.99 × 305,663.69
  4. Step 4: Simplify right side
    535,076.04x = 225,705,428,257.66
  5. Step 5: Solve for x
    x = 225,705,428,257.66/535,076.04
  6. Step 6: Final answer
    x = 421,819.35

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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.