Finding the Fourth Proportional to 1,368,391.53, 1,888,774.36 and 903,584.78
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Solution
The fourth proportional to 1,368,391.53, 1,888,774.36 and 903,584.78 is: 1,247,207.19
Step by Step Solution
- Step 1: Write the proportion equation
1,368,391.53 : 1,888,774.36 = 903,584.78 : x - Step 2: Convert to fraction form
1,368,391.53/1,888,774.36 = 903,584.78/x - Step 3: Cross multiply
1,368,391.53x = 1,888,774.36 × 903,584.78 - Step 4: Simplify right side
1,368,391.53x = 1,706,667,760,971.42 - Step 5: Solve for x
x = 1,706,667,760,971.42/1,368,391.53 - Step 6: Final answer
x = 1,247,207.19
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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.