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Finding the Fourth Proportional to 486,150.44, 670,674 and 463,638

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Solution

The fourth proportional to 486,150.44, 670,674 and 463,638 is: 639,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,150.44 : 670,674 = 463,638 : x
  2. Step 2: Convert to fraction form
    486,150.44/670,674 = 463,638/x
  3. Step 3: Cross multiply
    486,150.44x = 670,674 × 463,638
  4. Step 4: Simplify right side
    486,150.44x = 310,949,952,012
  5. Step 5: Solve for x
    x = 310,949,952,012/486,150.44
  6. Step 6: Final answer
    x = 639,616.72

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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.