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Finding the Fourth Proportional to 447,327.84, 617,317.24 and 243,379.92

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Solution

The fourth proportional to 447,327.84, 617,317.24 and 243,379.92 is: 335,866.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,327.84 : 617,317.24 = 243,379.92 : x
  2. Step 2: Convert to fraction form
    447,327.84/617,317.24 = 243,379.92/x
  3. Step 3: Cross multiply
    447,327.84x = 617,317.24 × 243,379.92
  4. Step 4: Simplify right side
    447,327.84x = 150,242,620,485.82
  5. Step 5: Solve for x
    x = 150,242,620,485.82/447,327.84
  6. Step 6: Final answer
    x = 335,866.91

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1.5x scale

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.