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Finding the Fourth Proportional to 415,188.08, 620,506.98 and 303,104.33

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Solution

The fourth proportional to 415,188.08, 620,506.98 and 303,104.33 is: 452,995.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,188.08 : 620,506.98 = 303,104.33 : x
  2. Step 2: Convert to fraction form
    415,188.08/620,506.98 = 303,104.33/x
  3. Step 3: Cross multiply
    415,188.08x = 620,506.98 × 303,104.33
  4. Step 4: Simplify right side
    415,188.08x = 188,078,351,657.59
  5. Step 5: Solve for x
    x = 188,078,351,657.59/415,188.08
  6. Step 6: Final answer
    x = 452,995.55

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Double scale
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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.