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Finding the Fourth Proportional to 515,889.10, 773,570.45 and 303,072.84

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Solution

The fourth proportional to 515,889.10, 773,570.45 and 303,072.84 is: 454,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,889.10 : 773,570.45 = 303,072.84 : x
  2. Step 2: Convert to fraction form
    515,889.10/773,570.45 = 303,072.84/x
  3. Step 3: Cross multiply
    515,889.10x = 773,570.45 × 303,072.84
  4. Step 4: Simplify right side
    515,889.10x = 234,448,193,979.26
  5. Step 5: Solve for x
    x = 234,448,193,979.26/515,889.10
  6. Step 6: Final answer
    x = 454,454.64

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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.