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Finding the Fourth Proportional to 702,237.31, 969,080.60 and 379,940.34

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Solution

The fourth proportional to 702,237.31, 969,080.60 and 379,940.34 is: 524,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,237.31 : 969,080.60 = 379,940.34 : x
  2. Step 2: Convert to fraction form
    702,237.31/969,080.60 = 379,940.34/x
  3. Step 3: Cross multiply
    702,237.31x = 969,080.60 × 379,940.34
  4. Step 4: Simplify right side
    702,237.31x = 368,192,806,856.15
  5. Step 5: Solve for x
    x = 368,192,806,856.15/702,237.31
  6. Step 6: Final answer
    x = 524,313.93

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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.