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Finding the Fourth Proportional to 478,552.53, 660,431.97 and 263,692.56

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Solution

The fourth proportional to 478,552.53, 660,431.97 and 263,692.56 is: 363,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,552.53 : 660,431.97 = 263,692.56 : x
  2. Step 2: Convert to fraction form
    478,552.53/660,431.97 = 263,692.56/x
  3. Step 3: Cross multiply
    478,552.53x = 660,431.97 × 263,692.56
  4. Step 4: Simplify right side
    478,552.53x = 174,150,996,875.14
  5. Step 5: Solve for x
    x = 174,150,996,875.14/478,552.53
  6. Step 6: Final answer
    x = 363,911.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.