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Finding the Fourth Proportional to 610,677.63, 842,748.64 and 338,736.67

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Solution

The fourth proportional to 610,677.63, 842,748.64 and 338,736.67 is: 467,464.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,677.63 : 842,748.64 = 338,736.67 : x
  2. Step 2: Convert to fraction form
    610,677.63/842,748.64 = 338,736.67/x
  3. Step 3: Cross multiply
    610,677.63x = 842,748.64 × 338,736.67
  4. Step 4: Simplify right side
    610,677.63x = 285,469,865,006.92
  5. Step 5: Solve for x
    x = 285,469,865,006.92/610,677.63
  6. Step 6: Final answer
    x = 467,464.09

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1.5x scale

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.