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Finding the Fourth Proportional to 702,693.20, 969,716.93 and 380,403.29

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Solution

The fourth proportional to 702,693.20, 969,716.93 and 380,403.29 is: 524,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,693.20 : 969,716.93 = 380,403.29 : x
  2. Step 2: Convert to fraction form
    702,693.20/969,716.93 = 380,403.29/x
  3. Step 3: Cross multiply
    702,693.20x = 969,716.93 × 380,403.29
  4. Step 4: Simplify right side
    702,693.20x = 368,883,510,540.70
  5. Step 5: Solve for x
    x = 368,883,510,540.70/702,693.20
  6. Step 6: Final answer
    x = 524,956.71

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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.