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Finding the Fourth Proportional to 519,602.40, 779,662.80 and 295,135.20

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Solution

The fourth proportional to 519,602.40, 779,662.80 and 295,135.20 is: 442,850.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,602.40 : 779,662.80 = 295,135.20 : x
  2. Step 2: Convert to fraction form
    519,602.40/779,662.80 = 295,135.20/x
  3. Step 3: Cross multiply
    519,602.40x = 779,662.80 × 295,135.20
  4. Step 4: Simplify right side
    519,602.40x = 230,105,936,410.56
  5. Step 5: Solve for x
    x = 230,105,936,410.56/519,602.40
  6. Step 6: Final answer
    x = 442,850.03

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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.