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Finding the Fourth Proportional to 671,340.45, 926,469.51 and 365,436.79

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Solution

The fourth proportional to 671,340.45, 926,469.51 and 365,436.79 is: 504,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,340.45 : 926,469.51 = 365,436.79 : x
  2. Step 2: Convert to fraction form
    671,340.45/926,469.51 = 365,436.79/x
  3. Step 3: Cross multiply
    671,340.45x = 926,469.51 × 365,436.79
  4. Step 4: Simplify right side
    671,340.45x = 338,566,043,767.27
  5. Step 5: Solve for x
    x = 338,566,043,767.27/671,340.45
  6. Step 6: Final answer
    x = 504,313.49

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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.