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Finding the Fourth Proportional to 609,192, 840,568.32 and 394,302.24

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Solution

The fourth proportional to 609,192, 840,568.32 and 394,302.24 is: 544,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,192 : 840,568.32 = 394,302.24 : x
  2. Step 2: Convert to fraction form
    609,192/840,568.32 = 394,302.24/x
  3. Step 3: Cross multiply
    609,192x = 840,568.32 × 394,302.24
  4. Step 4: Simplify right side
    609,192x = 331,437,971,449.04
  5. Step 5: Solve for x
    x = 331,437,971,449.04/609,192
  6. Step 6: Final answer
    x = 544,061.60

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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.