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Finding the Fourth Proportional to 702,375.48, 969,280.72 and 380,085.54

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Solution

The fourth proportional to 702,375.48, 969,280.72 and 380,085.54 is: 524,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,375.48 : 969,280.72 = 380,085.54 : x
  2. Step 2: Convert to fraction form
    702,375.48/969,280.72 = 380,085.54/x
  3. Step 3: Cross multiply
    702,375.48x = 969,280.72 × 380,085.54
  4. Step 4: Simplify right side
    702,375.48x = 368,409,585,872.79
  5. Step 5: Solve for x
    x = 368,409,585,872.79/702,375.48
  6. Step 6: Final answer
    x = 524,519.43

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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.