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Finding the Fourth Proportional to 415,147.82, 620,447.09 and 303,064.07

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Solution

The fourth proportional to 415,147.82, 620,447.09 and 303,064.07 is: 452,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,147.82 : 620,447.09 = 303,064.07 : x
  2. Step 2: Convert to fraction form
    415,147.82/620,447.09 = 303,064.07/x
  3. Step 3: Cross multiply
    415,147.82x = 620,447.09 × 303,064.07
  4. Step 4: Simplify right side
    415,147.82x = 188,035,220,315.06
  5. Step 5: Solve for x
    x = 188,035,220,315.06/415,147.82
  6. Step 6: Final answer
    x = 452,935.58

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1.5x scale

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.