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Finding the Fourth Proportional to 615,172.68, 848,935.44 and 343,224

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Solution

The fourth proportional to 615,172.68, 848,935.44 and 343,224 is: 473,647.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,172.68 : 848,935.44 = 343,224 : x
  2. Step 2: Convert to fraction form
    615,172.68/848,935.44 = 343,224/x
  3. Step 3: Cross multiply
    615,172.68x = 848,935.44 × 343,224
  4. Step 4: Simplify right side
    615,172.68x = 291,375,017,458.56
  5. Step 5: Solve for x
    x = 291,375,017,458.56/615,172.68
  6. Step 6: Final answer
    x = 473,647.53

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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.