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Finding the Fourth Proportional to 702,236.50, 969,079.48 and 379,939.52

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Solution

The fourth proportional to 702,236.50, 969,079.48 and 379,939.52 is: 524,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,236.50 : 969,079.48 = 379,939.52 : x
  2. Step 2: Convert to fraction form
    702,236.50/969,079.48 = 379,939.52/x
  3. Step 3: Cross multiply
    702,236.50x = 969,079.48 × 379,939.52
  4. Step 4: Simplify right side
    702,236.50x = 368,191,593,945.90
  5. Step 5: Solve for x
    x = 368,191,593,945.90/702,236.50
  6. Step 6: Final answer
    x = 524,312.81

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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.