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Finding the Fourth Proportional to 647,605.70, 971,408.55 and 363,004.10

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Solution

The fourth proportional to 647,605.70, 971,408.55 and 363,004.10 is: 544,506.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,605.70 : 971,408.55 = 363,004.10 : x
  2. Step 2: Convert to fraction form
    647,605.70/971,408.55 = 363,004.10/x
  3. Step 3: Cross multiply
    647,605.70x = 971,408.55 × 363,004.10
  4. Step 4: Simplify right side
    647,605.70x = 352,625,286,425.06
  5. Step 5: Solve for x
    x = 352,625,286,425.06/647,605.70
  6. Step 6: Final answer
    x = 544,506.15

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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.