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Finding the Fourth Proportional to 609,061.35, 840,311.44 and 354,363.33

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Solution

The fourth proportional to 609,061.35, 840,311.44 and 354,363.33 is: 488,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,061.35 : 840,311.44 = 354,363.33 : x
  2. Step 2: Convert to fraction form
    609,061.35/840,311.44 = 354,363.33/x
  3. Step 3: Cross multiply
    609,061.35x = 840,311.44 × 354,363.33
  4. Step 4: Simplify right side
    609,061.35x = 297,775,560,115.50
  5. Step 5: Solve for x
    x = 297,775,560,115.50/609,061.35
  6. Step 6: Final answer
    x = 488,908.97

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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.