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Finding the Fourth Proportional to 559,697.88, 772,399.26 and 305,065.56

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Solution

The fourth proportional to 559,697.88, 772,399.26 and 305,065.56 is: 420,999.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,697.88 : 772,399.26 = 305,065.56 : x
  2. Step 2: Convert to fraction form
    559,697.88/772,399.26 = 305,065.56/x
  3. Step 3: Cross multiply
    559,697.88x = 772,399.26 × 305,065.56
  4. Step 4: Simplify right side
    559,697.88x = 235,632,412,795.49
  5. Step 5: Solve for x
    x = 235,632,412,795.49/559,697.88
  6. Step 6: Final answer
    x = 420,999.29

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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.