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Finding the Fourth Proportional to 609,812.13, 914,863.53 and 210,456.36

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Solution

The fourth proportional to 609,812.13, 914,863.53 and 210,456.36 is: 315,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,812.13 : 914,863.53 = 210,456.36 : x
  2. Step 2: Convert to fraction form
    609,812.13/914,863.53 = 210,456.36/x
  3. Step 3: Cross multiply
    609,812.13x = 914,863.53 × 210,456.36
  4. Step 4: Simplify right side
    609,812.13x = 192,538,848,420.55
  5. Step 5: Solve for x
    x = 192,538,848,420.55/609,812.13
  6. Step 6: Final answer
    x = 315,734.70

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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.