Finding the Fourth Proportional to 1,550,215.13, 2,139,294.70 and 861,865.08
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Solution
The fourth proportional to 1,550,215.13, 2,139,294.70 and 861,865.08 is: 1,189,372.60
Step by Step Solution
- Step 1: Write the proportion equation
1,550,215.13 : 2,139,294.70 = 861,865.08 : x - Step 2: Convert to fraction form
1,550,215.13/2,139,294.70 = 861,865.08/x - Step 3: Cross multiply
1,550,215.13x = 2,139,294.70 × 861,865.08 - Step 4: Simplify right side
1,550,215.13x = 1,843,783,397,759.08 - Step 5: Solve for x
x = 1,843,783,397,759.08/1,550,215.13 - Step 6: Final answer
x = 1,189,372.60
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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.