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Finding the Fourth Proportional to 613,445.76, 920,261.52 and 192,682.08

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Solution

The fourth proportional to 613,445.76, 920,261.52 and 192,682.08 is: 289,052.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,445.76 : 920,261.52 = 192,682.08 : x
  2. Step 2: Convert to fraction form
    613,445.76/920,261.52 = 192,682.08/x
  3. Step 3: Cross multiply
    613,445.76x = 920,261.52 × 192,682.08
  4. Step 4: Simplify right side
    613,445.76x = 177,317,903,817.56
  5. Step 5: Solve for x
    x = 177,317,903,817.56/613,445.76
  6. Step 6: Final answer
    x = 289,052.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.