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Finding the Fourth Proportional to 560,523.86, 773,539.27 and 305,891.45

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Solution

The fourth proportional to 560,523.86, 773,539.27 and 305,891.45 is: 422,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,523.86 : 773,539.27 = 305,891.45 : x
  2. Step 2: Convert to fraction form
    560,523.86/773,539.27 = 305,891.45/x
  3. Step 3: Cross multiply
    560,523.86x = 773,539.27 × 305,891.45
  4. Step 4: Simplify right side
    560,523.86x = 236,619,048,932.24
  5. Step 5: Solve for x
    x = 236,619,048,932.24/560,523.86
  6. Step 6: Final answer
    x = 422,139.12

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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.