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Finding the Fourth Proportional to 615,218.21, 848,874.33 and 353,522.96

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Solution

The fourth proportional to 615,218.21, 848,874.33 and 353,522.96 is: 487,788.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,218.21 : 848,874.33 = 353,522.96 : x
  2. Step 2: Convert to fraction form
    615,218.21/848,874.33 = 353,522.96/x
  3. Step 3: Cross multiply
    615,218.21x = 848,874.33 × 353,522.96
  4. Step 4: Simplify right side
    615,218.21x = 300,096,562,361.07
  5. Step 5: Solve for x
    x = 300,096,562,361.07/615,218.21
  6. Step 6: Final answer
    x = 487,788.81

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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.