Home / 749,078.08-1,123,900.31-449,766.88

Finding the Fourth Proportional to 749,078.08, 1,123,900.31 and 449,766.88

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Solution

The fourth proportional to 749,078.08, 1,123,900.31 and 449,766.88 is: 674,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,078.08 : 1,123,900.31 = 449,766.88 : x
  2. Step 2: Convert to fraction form
    749,078.08/1,123,900.31 = 449,766.88/x
  3. Step 3: Cross multiply
    749,078.08x = 1,123,900.31 × 449,766.88
  4. Step 4: Simplify right side
    749,078.08x = 505,493,134,174.40
  5. Step 5: Solve for x
    x = 505,493,134,174.40/749,078.08
  6. Step 6: Final answer
    x = 674,820.35

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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.