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Finding the Fourth Proportional to 415,284.44, 620,650.73 and 303,200.69

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Solution

The fourth proportional to 415,284.44, 620,650.73 and 303,200.69 is: 453,139.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,284.44 : 620,650.73 = 303,200.69 : x
  2. Step 2: Convert to fraction form
    415,284.44/620,650.73 = 303,200.69/x
  3. Step 3: Cross multiply
    415,284.44x = 620,650.73 × 303,200.69
  4. Step 4: Simplify right side
    415,284.44x = 188,181,724,965.75
  5. Step 5: Solve for x
    x = 188,181,724,965.75/415,284.44
  6. Step 6: Final answer
    x = 453,139.36

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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.