Home / 447,623.79-617,720.80-243,676.18

Finding the Fourth Proportional to 447,623.79, 617,720.80 and 243,676.18

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Solution

The fourth proportional to 447,623.79, 617,720.80 and 243,676.18 is: 336,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,623.79 : 617,720.80 = 243,676.18 : x
  2. Step 2: Convert to fraction form
    447,623.79/617,720.80 = 243,676.18/x
  3. Step 3: Cross multiply
    447,623.79x = 617,720.80 × 243,676.18
  4. Step 4: Simplify right side
    447,623.79x = 150,523,844,850.54
  5. Step 5: Solve for x
    x = 150,523,844,850.54/447,623.79
  6. Step 6: Final answer
    x = 336,273.11

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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.