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Finding the Fourth Proportional to 486,149.44, 670,672.62 and 463,637

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Solution

The fourth proportional to 486,149.44, 670,672.62 and 463,637 is: 639,615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,149.44 : 670,672.62 = 463,637 : x
  2. Step 2: Convert to fraction form
    486,149.44/670,672.62 = 463,637/x
  3. Step 3: Cross multiply
    486,149.44x = 670,672.62 × 463,637
  4. Step 4: Simplify right side
    486,149.44x = 310,948,641,518.94
  5. Step 5: Solve for x
    x = 310,948,641,518.94/486,149.44
  6. Step 6: Final answer
    x = 639,615.34

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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.