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Finding the Fourth Proportional to 609,246, 840,642.84 and 394,356.24

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Solution

The fourth proportional to 609,246, 840,642.84 and 394,356.24 is: 544,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,246 : 840,642.84 = 394,356.24 : x
  2. Step 2: Convert to fraction form
    609,246/840,642.84 = 394,356.24/x
  3. Step 3: Cross multiply
    609,246x = 840,642.84 × 394,356.24
  4. Step 4: Simplify right side
    609,246x = 331,512,749,565.32
  5. Step 5: Solve for x
    x = 331,512,749,565.32/609,246
  6. Step 6: Final answer
    x = 544,136.11

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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.