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Finding the Fourth Proportional to 519,944.40, 780,175.80 and 295,477.20

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Solution

The fourth proportional to 519,944.40, 780,175.80 and 295,477.20 is: 443,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,944.40 : 780,175.80 = 295,477.20 : x
  2. Step 2: Convert to fraction form
    519,944.40/780,175.80 = 295,477.20/x
  3. Step 3: Cross multiply
    519,944.40x = 780,175.80 × 295,477.20
  4. Step 4: Simplify right side
    519,944.40x = 230,524,160,891.76
  5. Step 5: Solve for x
    x = 230,524,160,891.76/519,944.40
  6. Step 6: Final answer
    x = 443,363.10

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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.