Home / 1,066,790.70-1,600,416.45-318,912.30

Finding the Fourth Proportional to 1,066,790.70, 1,600,416.45 and 318,912.30

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Solution

The fourth proportional to 1,066,790.70, 1,600,416.45 and 318,912.30 is: 478,437.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,790.70 : 1,600,416.45 = 318,912.30 : x
  2. Step 2: Convert to fraction form
    1,066,790.70/1,600,416.45 = 318,912.30/x
  3. Step 3: Cross multiply
    1,066,790.70x = 1,600,416.45 × 318,912.30
  4. Step 4: Simplify right side
    1,066,790.70x = 510,392,491,027.34
  5. Step 5: Solve for x
    x = 510,392,491,027.34/1,066,790.70
  6. Step 6: Final answer
    x = 478,437.33

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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.