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Finding the Fourth Proportional to 415,181.12, 620,496.60 and 303,097.37

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Solution

The fourth proportional to 415,181.12, 620,496.60 and 303,097.37 is: 452,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,181.12 : 620,496.60 = 303,097.37 : x
  2. Step 2: Convert to fraction form
    415,181.12/620,496.60 = 303,097.37/x
  3. Step 3: Cross multiply
    415,181.12x = 620,496.60 × 303,097.37
  4. Step 4: Simplify right side
    415,181.12x = 188,070,884,451.46
  5. Step 5: Solve for x
    x = 188,070,884,451.46/415,181.12
  6. Step 6: Final answer
    x = 452,985.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.