Home / 684,987.34-945,259.31-379,076.66

Finding the Fourth Proportional to 684,987.34, 945,259.31 and 379,076.66

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Solution

The fourth proportional to 684,987.34, 945,259.31 and 379,076.66 is: 523,112.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,987.34 : 945,259.31 = 379,076.66 : x
  2. Step 2: Convert to fraction form
    684,987.34/945,259.31 = 379,076.66/x
  3. Step 3: Cross multiply
    684,987.34x = 945,259.31 × 379,076.66
  4. Step 4: Simplify right side
    684,987.34x = 358,325,740,173.32
  5. Step 5: Solve for x
    x = 358,325,740,173.32/684,987.34
  6. Step 6: Final answer
    x = 523,112.94

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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.