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Finding the Fourth Proportional to 479,776.96, 662,150.56 and 278,572.96

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Solution

The fourth proportional to 479,776.96, 662,150.56 and 278,572.96 is: 384,464.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,776.96 : 662,150.56 = 278,572.96 : x
  2. Step 2: Convert to fraction form
    479,776.96/662,150.56 = 278,572.96/x
  3. Step 3: Cross multiply
    479,776.96x = 662,150.56 × 278,572.96
  4. Step 4: Simplify right side
    479,776.96x = 184,457,241,464.86
  5. Step 5: Solve for x
    x = 184,457,241,464.86/479,776.96
  6. Step 6: Final answer
    x = 384,464.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.