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Finding the Fourth Proportional to 626,006.88, 863,909.06 and 354,069.46

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Solution

The fourth proportional to 626,006.88, 863,909.06 and 354,069.46 is: 488,626.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,006.88 : 863,909.06 = 354,069.46 : x
  2. Step 2: Convert to fraction form
    626,006.88/863,909.06 = 354,069.46/x
  3. Step 3: Cross multiply
    626,006.88x = 863,909.06 × 354,069.46
  4. Step 4: Simplify right side
    626,006.88x = 305,883,810,433.19
  5. Step 5: Solve for x
    x = 305,883,810,433.19/626,006.88
  6. Step 6: Final answer
    x = 488,626.91

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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.