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Finding the Fourth Proportional to 665,860.96, 998,890.88 and 245,104.84

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Solution

The fourth proportional to 665,860.96, 998,890.88 and 245,104.84 is: 367,693.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,860.96 : 998,890.88 = 245,104.84 : x
  2. Step 2: Convert to fraction form
    665,860.96/998,890.88 = 245,104.84/x
  3. Step 3: Cross multiply
    665,860.96x = 998,890.88 × 245,104.84
  4. Step 4: Simplify right side
    665,860.96x = 244,832,989,319.86
  5. Step 5: Solve for x
    x = 244,832,989,319.86/665,860.96
  6. Step 6: Final answer
    x = 367,693.86

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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.