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Finding the Fourth Proportional to 557,997.58, 770,096.87 and 316,254.19

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Solution

The fourth proportional to 557,997.58, 770,096.87 and 316,254.19 is: 436,464.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,997.58 : 770,096.87 = 316,254.19 : x
  2. Step 2: Convert to fraction form
    557,997.58/770,096.87 = 316,254.19/x
  3. Step 3: Cross multiply
    557,997.58x = 770,096.87 × 316,254.19
  4. Step 4: Simplify right side
    557,997.58x = 243,546,361,843.39
  5. Step 5: Solve for x
    x = 243,546,361,843.39/557,997.58
  6. Step 6: Final answer
    x = 436,464.91

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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.