Finding the Fourth Proportional to 1,638,257.79, 2,260,806.25 and 913,151.49
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Solution
The fourth proportional to 1,638,257.79, 2,260,806.25 and 913,151.49 is: 1,260,154.91
Step by Step Solution
- Step 1: Write the proportion equation
1,638,257.79 : 2,260,806.25 = 913,151.49 : x - Step 2: Convert to fraction form
1,638,257.79/2,260,806.25 = 913,151.49/x - Step 3: Cross multiply
1,638,257.79x = 2,260,806.25 × 913,151.49 - Step 4: Simplify right side
1,638,257.79x = 2,064,458,591,223.06 - Step 5: Solve for x
x = 2,064,458,591,223.06/1,638,257.79 - Step 6: Final answer
x = 1,260,154.91
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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.