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Finding the Fourth Proportional to 415,154.12, 620,456.54 and 303,070.37

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Solution

The fourth proportional to 415,154.12, 620,456.54 and 303,070.37 is: 452,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,154.12 : 620,456.54 = 303,070.37 : x
  2. Step 2: Convert to fraction form
    415,154.12/620,456.54 = 303,070.37/x
  3. Step 3: Cross multiply
    415,154.12x = 620,456.54 × 303,070.37
  4. Step 4: Simplify right side
    415,154.12x = 188,041,988,529.09
  5. Step 5: Solve for x
    x = 188,041,988,529.09/415,154.12
  6. Step 6: Final answer
    x = 452,945.02

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