Home / 680,181.76-1,020,263.68-305,940.48

Finding the Fourth Proportional to 680,181.76, 1,020,263.68 and 305,940.48

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Solution

The fourth proportional to 680,181.76, 1,020,263.68 and 305,940.48 is: 458,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,181.76 : 1,020,263.68 = 305,940.48 : x
  2. Step 2: Convert to fraction form
    680,181.76/1,020,263.68 = 305,940.48/x
  3. Step 3: Cross multiply
    680,181.76x = 1,020,263.68 × 305,940.48
  4. Step 4: Simplify right side
    680,181.76x = 312,139,959,985.77
  5. Step 5: Solve for x
    x = 312,139,959,985.77/680,181.76
  6. Step 6: Final answer
    x = 458,906.69

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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.