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Finding the Fourth Proportional to 560,503.40, 773,513.42 and 305,868.56

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Solution

The fourth proportional to 560,503.40, 773,513.42 and 305,868.56 is: 422,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,503.40 : 773,513.42 = 305,868.56 : x
  2. Step 2: Convert to fraction form
    560,503.40/773,513.42 = 305,868.56/x
  3. Step 3: Cross multiply
    560,503.40x = 773,513.42 × 305,868.56
  4. Step 4: Simplify right side
    560,503.40x = 236,593,430,519.17
  5. Step 5: Solve for x
    x = 236,593,430,519.17/560,503.40
  6. Step 6: Final answer
    x = 422,108.83

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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.