Home / 447,664.80-617,783.69-243,721.89

Finding the Fourth Proportional to 447,664.80, 617,783.69 and 243,721.89

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Solution

The fourth proportional to 447,664.80, 617,783.69 and 243,721.89 is: 336,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,664.80 : 617,783.69 = 243,721.89 : x
  2. Step 2: Convert to fraction form
    447,664.80/617,783.69 = 243,721.89/x
  3. Step 3: Cross multiply
    447,664.80x = 617,783.69 × 243,721.89
  4. Step 4: Simplify right side
    447,664.80x = 150,567,407,319.37
  5. Step 5: Solve for x
    x = 150,567,407,319.37/447,664.80
  6. Step 6: Final answer
    x = 336,339.62

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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.