Home / 447,742.35-617,410.89-345,784.41

Finding the Fourth Proportional to 447,742.35, 617,410.89 and 345,784.41

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Solution

The fourth proportional to 447,742.35, 617,410.89 and 345,784.41 is: 476,816.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,742.35 : 617,410.89 = 345,784.41 : x
  2. Step 2: Convert to fraction form
    447,742.35/617,410.89 = 345,784.41/x
  3. Step 3: Cross multiply
    447,742.35x = 617,410.89 × 345,784.41
  4. Step 4: Simplify right side
    447,742.35x = 213,491,060,326.23
  5. Step 5: Solve for x
    x = 213,491,060,326.23/447,742.35
  6. Step 6: Final answer
    x = 476,816.77

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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.