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Finding the Fourth Proportional to 703,257.21, 970,494.07 and 380,968.64

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Solution

The fourth proportional to 703,257.21, 970,494.07 and 380,968.64 is: 525,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,257.21 : 970,494.07 = 380,968.64 : x
  2. Step 2: Convert to fraction form
    703,257.21/970,494.07 = 380,968.64/x
  3. Step 3: Cross multiply
    703,257.21x = 970,494.07 × 380,968.64
  4. Step 4: Simplify right side
    703,257.21x = 369,727,805,975.97
  5. Step 5: Solve for x
    x = 369,727,805,975.97/703,257.21
  6. Step 6: Final answer
    x = 525,736.25

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1.5x scale

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.