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Finding the Fourth Proportional to 647,943.98, 971,159.09 and 487,504.44

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Solution

The fourth proportional to 647,943.98, 971,159.09 and 487,504.44 is: 730,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,943.98 : 971,159.09 = 487,504.44 : x
  2. Step 2: Convert to fraction form
    647,943.98/971,159.09 = 487,504.44/x
  3. Step 3: Cross multiply
    647,943.98x = 971,159.09 × 487,504.44
  4. Step 4: Simplify right side
    647,943.98x = 473,444,365,883.84
  5. Step 5: Solve for x
    x = 473,444,365,883.84/647,943.98
  6. Step 6: Final answer
    x = 730,687.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.