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Finding the Fourth Proportional to 560,517.50, 773,530.55 and 305,885.09

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Solution

The fourth proportional to 560,517.50, 773,530.55 and 305,885.09 is: 422,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,517.50 : 773,530.55 = 305,885.09 : x
  2. Step 2: Convert to fraction form
    560,517.50/773,530.55 = 305,885.09/x
  3. Step 3: Cross multiply
    560,517.50x = 773,530.55 × 305,885.09
  4. Step 4: Simplify right side
    560,517.50x = 236,611,461,904.50
  5. Step 5: Solve for x
    x = 236,611,461,904.50/560,517.50
  6. Step 6: Final answer
    x = 422,130.37

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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.