Home / 380,944.20-571,421.16-262,583.76

Finding the Fourth Proportional to 380,944.20, 571,421.16 and 262,583.76

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Solution

The fourth proportional to 380,944.20, 571,421.16 and 262,583.76 is: 393,878.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,944.20 : 571,421.16 = 262,583.76 : x
  2. Step 2: Convert to fraction form
    380,944.20/571,421.16 = 262,583.76/x
  3. Step 3: Cross multiply
    380,944.20x = 571,421.16 × 262,583.76
  4. Step 4: Simplify right side
    380,944.20x = 150,045,916,736.36
  5. Step 5: Solve for x
    x = 150,045,916,736.36/380,944.20
  6. Step 6: Final answer
    x = 393,878.99

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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.