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Finding the Fourth Proportional to 662,692.80, 994,039.20 and 307,588.80

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Solution

The fourth proportional to 662,692.80, 994,039.20 and 307,588.80 is: 461,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,692.80 : 994,039.20 = 307,588.80 : x
  2. Step 2: Convert to fraction form
    662,692.80/994,039.20 = 307,588.80/x
  3. Step 3: Cross multiply
    662,692.80x = 994,039.20 × 307,588.80
  4. Step 4: Simplify right side
    662,692.80x = 305,755,324,680.96
  5. Step 5: Solve for x
    x = 305,755,324,680.96/662,692.80
  6. Step 6: Final answer
    x = 461,383.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.