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Finding the Fourth Proportional to 702,440.30, 969,367.60 and 380,150.39

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Solution

The fourth proportional to 702,440.30, 969,367.60 and 380,150.39 is: 524,607.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,440.30 : 969,367.60 = 380,150.39 : x
  2. Step 2: Convert to fraction form
    702,440.30/969,367.60 = 380,150.39/x
  3. Step 3: Cross multiply
    702,440.30x = 969,367.60 × 380,150.39
  4. Step 4: Simplify right side
    702,440.30x = 368,505,474,091.97
  5. Step 5: Solve for x
    x = 368,505,474,091.97/702,440.30
  6. Step 6: Final answer
    x = 524,607.53

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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.