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Finding the Fourth Proportional to 486,119.88, 670,738.32 and 282,052.53

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Solution

The fourth proportional to 486,119.88, 670,738.32 and 282,052.53 is: 389,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,119.88 : 670,738.32 = 282,052.53 : x
  2. Step 2: Convert to fraction form
    486,119.88/670,738.32 = 282,052.53/x
  3. Step 3: Cross multiply
    486,119.88x = 670,738.32 × 282,052.53
  4. Step 4: Simplify right side
    486,119.88x = 189,183,440,123.95
  5. Step 5: Solve for x
    x = 189,183,440,123.95/486,119.88
  6. Step 6: Final answer
    x = 389,170.34

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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.