Home / 680,629.34-1,020,313.08-301,347.98

Finding the Fourth Proportional to 680,629.34, 1,020,313.08 and 301,347.98

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Solution

The fourth proportional to 680,629.34, 1,020,313.08 and 301,347.98 is: 451,742.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,629.34 : 1,020,313.08 = 301,347.98 : x
  2. Step 2: Convert to fraction form
    680,629.34/1,020,313.08 = 301,347.98/x
  3. Step 3: Cross multiply
    680,629.34x = 1,020,313.08 × 301,347.98
  4. Step 4: Simplify right side
    680,629.34x = 307,469,288,176.36
  5. Step 5: Solve for x
    x = 307,469,288,176.36/680,629.34
  6. Step 6: Final answer
    x = 451,742.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.