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Finding the Fourth Proportional to 560,278.53, 773,183.44 and 305,629.72

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Solution

The fourth proportional to 560,278.53, 773,183.44 and 305,629.72 is: 421,768.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,278.53 : 773,183.44 = 305,629.72 : x
  2. Step 2: Convert to fraction form
    560,278.53/773,183.44 = 305,629.72/x
  3. Step 3: Cross multiply
    560,278.53x = 773,183.44 × 305,629.72
  4. Step 4: Simplify right side
    560,278.53x = 236,307,837,511.76
  5. Step 5: Solve for x
    x = 236,307,837,511.76/560,278.53
  6. Step 6: Final answer
    x = 421,768.50

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1.5x scale

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.