Home / 989,885.67-1,365,336.55-908,476.34

Finding the Fourth Proportional to 989,885.67, 1,365,336.55 and 908,476.34

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Solution

The fourth proportional to 989,885.67, 1,365,336.55 and 908,476.34 is: 1,253,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,885.67 : 1,365,336.55 = 908,476.34 : x
  2. Step 2: Convert to fraction form
    989,885.67/1,365,336.55 = 908,476.34/x
  3. Step 3: Cross multiply
    989,885.67x = 1,365,336.55 × 908,476.34
  4. Step 4: Simplify right side
    989,885.67x = 1,240,375,951,812.23
  5. Step 5: Solve for x
    x = 1,240,375,951,812.23/989,885.67
  6. Step 6: Final answer
    x = 1,253,049.71

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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.