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Finding the Fourth Proportional to 615,099.75, 848,838.20 and 343,167.72

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Solution

The fourth proportional to 615,099.75, 848,838.20 and 343,167.72 is: 473,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,099.75 : 848,838.20 = 343,167.72 : x
  2. Step 2: Convert to fraction form
    615,099.75/848,838.20 = 343,167.72/x
  3. Step 3: Cross multiply
    615,099.75x = 848,838.20 × 343,167.72
  4. Step 4: Simplify right side
    615,099.75x = 291,293,869,742.90
  5. Step 5: Solve for x
    x = 291,293,869,742.90/615,099.75
  6. Step 6: Final answer
    x = 473,571.76

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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.