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Finding the Fourth Proportional to 447,583.85, 617,679.63 and 243,648.35

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Solution

The fourth proportional to 447,583.85, 617,679.63 and 243,648.35 is: 336,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,583.85 : 617,679.63 = 243,648.35 : x
  2. Step 2: Convert to fraction form
    447,583.85/617,679.63 = 243,648.35/x
  3. Step 3: Cross multiply
    447,583.85x = 617,679.63 × 243,648.35
  4. Step 4: Simplify right side
    447,583.85x = 150,496,619,589.71
  5. Step 5: Solve for x
    x = 150,496,619,589.71/447,583.85
  6. Step 6: Final answer
    x = 336,242.30

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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.