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Finding the Fourth Proportional to 488,910.80, 734,057.40 and 302,286.80

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Solution

The fourth proportional to 488,910.80, 734,057.40 and 302,286.80 is: 453,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,910.80 : 734,057.40 = 302,286.80 : x
  2. Step 2: Convert to fraction form
    488,910.80/734,057.40 = 302,286.80/x
  3. Step 3: Cross multiply
    488,910.80x = 734,057.40 × 302,286.80
  4. Step 4: Simplify right side
    488,910.80x = 221,895,862,462.32
  5. Step 5: Solve for x
    x = 221,895,862,462.32/488,910.80
  6. Step 6: Final answer
    x = 453,857.56

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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.