Home / 989,890.67-1,365,343.45-908,481.34

Finding the Fourth Proportional to 989,890.67, 1,365,343.45 and 908,481.34

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Solution

The fourth proportional to 989,890.67, 1,365,343.45 and 908,481.34 is: 1,253,056.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,890.67 : 1,365,343.45 = 908,481.34 : x
  2. Step 2: Convert to fraction form
    989,890.67/1,365,343.45 = 908,481.34/x
  3. Step 3: Cross multiply
    989,890.67x = 1,365,343.45 × 908,481.34
  4. Step 4: Simplify right side
    989,890.67x = 1,240,389,047,016.22
  5. Step 5: Solve for x
    x = 1,240,389,047,016.22/989,890.67
  6. Step 6: Final answer
    x = 1,253,056.61

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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.