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Finding the Fourth Proportional to 609,100.29, 840,644.33 and 354,533.49

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Solution

The fourth proportional to 609,100.29, 840,644.33 and 354,533.49 is: 489,306.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,100.29 : 840,644.33 = 354,533.49 : x
  2. Step 2: Convert to fraction form
    609,100.29/840,644.33 = 354,533.49/x
  3. Step 3: Cross multiply
    609,100.29x = 840,644.33 × 354,533.49
  4. Step 4: Simplify right side
    609,100.29x = 298,036,566,390.94
  5. Step 5: Solve for x
    x = 298,036,566,390.94/609,100.29
  6. Step 6: Final answer
    x = 489,306.23

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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.