Home / 759,636.76-1,139,608.50-338,912.68

Finding the Fourth Proportional to 759,636.76, 1,139,608.50 and 338,912.68

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Solution

The fourth proportional to 759,636.76, 1,139,608.50 and 338,912.68 is: 508,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,636.76 : 1,139,608.50 = 338,912.68 : x
  2. Step 2: Convert to fraction form
    759,636.76/1,139,608.50 = 338,912.68/x
  3. Step 3: Cross multiply
    759,636.76x = 1,139,608.50 × 338,912.68
  4. Step 4: Simplify right side
    759,636.76x = 386,227,770,885.78
  5. Step 5: Solve for x
    x = 386,227,770,885.78/759,636.76
  6. Step 6: Final answer
    x = 508,437.44

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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.