Home / 529,845.76-731,157.60-303,505.84

Finding the Fourth Proportional to 529,845.76, 731,157.60 and 303,505.84

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Solution

The fourth proportional to 529,845.76, 731,157.60 and 303,505.84 is: 418,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,845.76 : 731,157.60 = 303,505.84 : x
  2. Step 2: Convert to fraction form
    529,845.76/731,157.60 = 303,505.84/x
  3. Step 3: Cross multiply
    529,845.76x = 731,157.60 × 303,505.84
  4. Step 4: Simplify right side
    529,845.76x = 221,910,601,560.38
  5. Step 5: Solve for x
    x = 221,910,601,560.38/529,845.76
  6. Step 6: Final answer
    x = 418,821.13

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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.