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Finding the Fourth Proportional to 702,190.32, 969,022.68 and 379,900.20

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Solution

The fourth proportional to 702,190.32, 969,022.68 and 379,900.20 is: 524,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,190.32 : 969,022.68 = 379,900.20 : x
  2. Step 2: Convert to fraction form
    702,190.32/969,022.68 = 379,900.20/x
  3. Step 3: Cross multiply
    702,190.32x = 969,022.68 × 379,900.20
  4. Step 4: Simplify right side
    702,190.32x = 368,131,909,936.54
  5. Step 5: Solve for x
    x = 368,131,909,936.54/702,190.32
  6. Step 6: Final answer
    x = 524,262.30

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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.