Home / 318,945.44-478,418.83-299,459.27

Finding the Fourth Proportional to 318,945.44, 478,418.83 and 299,459.27

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Solution

The fourth proportional to 318,945.44, 478,418.83 and 299,459.27 is: 449,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,945.44 : 478,418.83 = 299,459.27 : x
  2. Step 2: Convert to fraction form
    318,945.44/478,418.83 = 299,459.27/x
  3. Step 3: Cross multiply
    318,945.44x = 478,418.83 × 299,459.27
  4. Step 4: Simplify right side
    318,945.44x = 143,266,953,586.05
  5. Step 5: Solve for x
    x = 143,266,953,586.05/318,945.44
  6. Step 6: Final answer
    x = 449,189.53

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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.