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Finding the Fourth Proportional to 557,895.70, 770,093.49 and 331,538.50

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Solution

The fourth proportional to 557,895.70, 770,093.49 and 331,538.50 is: 457,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,895.70 : 770,093.49 = 331,538.50 : x
  2. Step 2: Convert to fraction form
    557,895.70/770,093.49 = 331,538.50/x
  3. Step 3: Cross multiply
    557,895.70x = 770,093.49 × 331,538.50
  4. Step 4: Simplify right side
    557,895.70x = 255,315,640,534.37
  5. Step 5: Solve for x
    x = 255,315,640,534.37/557,895.70
  6. Step 6: Final answer
    x = 457,640.45

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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.