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Finding the Fourth Proportional to 665,820.88, 998,830.86 and 245,064.76

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Solution

The fourth proportional to 665,820.88, 998,830.86 and 245,064.76 is: 367,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,820.88 : 998,830.86 = 245,064.76 : x
  2. Step 2: Convert to fraction form
    665,820.88/998,830.86 = 245,064.76/x
  3. Step 3: Cross multiply
    665,820.88x = 998,830.86 × 245,064.76
  4. Step 4: Simplify right side
    665,820.88x = 244,778,244,986.49
  5. Step 5: Solve for x
    x = 244,778,244,986.49/665,820.88
  6. Step 6: Final answer
    x = 367,633.78

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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.