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Finding the Fourth Proportional to 702,479.96, 969,422.30 and 380,190.03

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Solution

The fourth proportional to 702,479.96, 969,422.30 and 380,190.03 is: 524,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,479.96 : 969,422.30 = 380,190.03 : x
  2. Step 2: Convert to fraction form
    702,479.96/969,422.30 = 380,190.03/x
  3. Step 3: Cross multiply
    702,479.96x = 969,422.30 × 380,190.03
  4. Step 4: Simplify right side
    702,479.96x = 368,564,691,418.72
  5. Step 5: Solve for x
    x = 368,564,691,418.72/702,479.96
  6. Step 6: Final answer
    x = 524,662.22

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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.