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Finding the Fourth Proportional to 560,680.58, 773,712.30 and 318,940.54

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Solution

The fourth proportional to 560,680.58, 773,712.30 and 318,940.54 is: 440,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,680.58 : 773,712.30 = 318,940.54 : x
  2. Step 2: Convert to fraction form
    560,680.58/773,712.30 = 318,940.54/x
  3. Step 3: Cross multiply
    560,680.58x = 773,712.30 × 318,940.54
  4. Step 4: Simplify right side
    560,680.58x = 246,768,218,028.39
  5. Step 5: Solve for x
    x = 246,768,218,028.39/560,680.58
  6. Step 6: Final answer
    x = 440,122.64

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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.