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Finding the Fourth Proportional to 626,007.92, 863,910.48 and 354,070.49

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Solution

The fourth proportional to 626,007.92, 863,910.48 and 354,070.49 is: 488,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,007.92 : 863,910.48 = 354,070.49 : x
  2. Step 2: Convert to fraction form
    626,007.92/863,910.48 = 354,070.49/x
  3. Step 3: Cross multiply
    626,007.92x = 863,910.48 × 354,070.49
  4. Step 4: Simplify right side
    626,007.92x = 305,885,206,969.74
  5. Step 5: Solve for x
    x = 305,885,206,969.74/626,007.92
  6. Step 6: Final answer
    x = 488,628.33

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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.