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Finding the Fourth Proportional to 868,603.50, 1,198,722.04 and 486,753.30

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Solution

The fourth proportional to 868,603.50, 1,198,722.04 and 486,753.30 is: 671,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,603.50 : 1,198,722.04 = 486,753.30 : x
  2. Step 2: Convert to fraction form
    868,603.50/1,198,722.04 = 486,753.30/x
  3. Step 3: Cross multiply
    868,603.50x = 1,198,722.04 × 486,753.30
  4. Step 4: Simplify right side
    868,603.50x = 583,481,907,535.85
  5. Step 5: Solve for x
    x = 583,481,907,535.85/868,603.50
  6. Step 6: Final answer
    x = 671,747.13

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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.