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Finding the Fourth Proportional to 471,850.56, 651,132 and 280,884.96

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Solution

The fourth proportional to 471,850.56, 651,132 and 280,884.96 is: 387,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,850.56 : 651,132 = 280,884.96 : x
  2. Step 2: Convert to fraction form
    471,850.56/651,132 = 280,884.96/x
  3. Step 3: Cross multiply
    471,850.56x = 651,132 × 280,884.96
  4. Step 4: Simplify right side
    471,850.56x = 182,893,185,774.72
  5. Step 5: Solve for x
    x = 182,893,185,774.72/471,850.56
  6. Step 6: Final answer
    x = 387,608.28

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1.5x scale

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.