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Finding the Fourth Proportional to 665,742.32, 998,515 and 244,919.76

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Solution

The fourth proportional to 665,742.32, 998,515 and 244,919.76 is: 367,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,742.32 : 998,515 = 244,919.76 : x
  2. Step 2: Convert to fraction form
    665,742.32/998,515 = 244,919.76/x
  3. Step 3: Cross multiply
    665,742.32x = 998,515 × 244,919.76
  4. Step 4: Simplify right side
    665,742.32x = 244,556,054,156.40
  5. Step 5: Solve for x
    x = 244,556,054,156.40/665,742.32
  6. Step 6: Final answer
    x = 367,343.41

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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.