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Finding the Fourth Proportional to 703,375.65, 970,650.74 and 381,066.53

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Solution

The fourth proportional to 703,375.65, 970,650.74 and 381,066.53 is: 525,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,375.65 : 970,650.74 = 381,066.53 : x
  2. Step 2: Convert to fraction form
    703,375.65/970,650.74 = 381,066.53/x
  3. Step 3: Cross multiply
    703,375.65x = 970,650.74 × 381,066.53
  4. Step 4: Simplify right side
    703,375.65x = 369,882,505,433.15
  5. Step 5: Solve for x
    x = 369,882,505,433.15/703,375.65
  6. Step 6: Final answer
    x = 525,867.66

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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.