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Finding the Fourth Proportional to 703,069.71, 970,231.37 and 380,772.43

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Solution

The fourth proportional to 703,069.71, 970,231.37 and 380,772.43 is: 525,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,069.71 : 970,231.37 = 380,772.43 : x
  2. Step 2: Convert to fraction form
    703,069.71/970,231.37 = 380,772.43/x
  3. Step 3: Cross multiply
    703,069.71x = 970,231.37 × 380,772.43
  4. Step 4: Simplify right side
    703,069.71x = 369,437,352,087.69
  5. Step 5: Solve for x
    x = 369,437,352,087.69/703,069.71
  6. Step 6: Final answer
    x = 525,463.33

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Double scale
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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.