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Finding the Fourth Proportional to 515,910.65, 773,602.50 and 303,094.28

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Solution

The fourth proportional to 515,910.65, 773,602.50 and 303,094.28 is: 454,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,910.65 : 773,602.50 = 303,094.28 : x
  2. Step 2: Convert to fraction form
    515,910.65/773,602.50 = 303,094.28/x
  3. Step 3: Cross multiply
    515,910.65x = 773,602.50 × 303,094.28
  4. Step 4: Simplify right side
    515,910.65x = 234,474,492,743.70
  5. Step 5: Solve for x
    x = 234,474,492,743.70/515,910.65
  6. Step 6: Final answer
    x = 454,486.63

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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.