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Finding the Fourth Proportional to 449,402.46, 620,112.15 and 258,346.14

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Solution

The fourth proportional to 449,402.46, 620,112.15 and 258,346.14 is: 356,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,402.46 : 620,112.15 = 258,346.14 : x
  2. Step 2: Convert to fraction form
    449,402.46/620,112.15 = 258,346.14/x
  3. Step 3: Cross multiply
    449,402.46x = 620,112.15 × 258,346.14
  4. Step 4: Simplify right side
    449,402.46x = 160,203,580,319.60
  5. Step 5: Solve for x
    x = 160,203,580,319.60/449,402.46
  6. Step 6: Final answer
    x = 356,481.32

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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.