Home / 685,320.04-945,840.62-394,875.97

Finding the Fourth Proportional to 685,320.04, 945,840.62 and 394,875.97

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Solution

The fourth proportional to 685,320.04, 945,840.62 and 394,875.97 is: 544,985.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,320.04 : 945,840.62 = 394,875.97 : x
  2. Step 2: Convert to fraction form
    685,320.04/945,840.62 = 394,875.97/x
  3. Step 3: Cross multiply
    685,320.04x = 945,840.62 × 394,875.97
  4. Step 4: Simplify right side
    685,320.04x = 373,489,732,287.90
  5. Step 5: Solve for x
    x = 373,489,732,287.90/685,320.04
  6. Step 6: Final answer
    x = 544,985.86

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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.