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Finding the Fourth Proportional to 560,459.67, 773,451.36 and 318,777

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Solution

The fourth proportional to 560,459.67, 773,451.36 and 318,777 is: 439,921.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,459.67 : 773,451.36 = 318,777 : x
  2. Step 2: Convert to fraction form
    560,459.67/773,451.36 = 318,777/x
  3. Step 3: Cross multiply
    560,459.67x = 773,451.36 × 318,777
  4. Step 4: Simplify right side
    560,459.67x = 246,558,504,186.72
  5. Step 5: Solve for x
    x = 246,558,504,186.72/560,459.67
  6. Step 6: Final answer
    x = 439,921.94

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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.