Finding the Fourth Proportional to 1,187,559.80, 1,638,792.74 and 703,837.84
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Solution
The fourth proportional to 1,187,559.80, 1,638,792.74 and 703,837.84 is: 971,272.64
Step by Step Solution
- Step 1: Write the proportion equation
1,187,559.80 : 1,638,792.74 = 703,837.84 : x - Step 2: Convert to fraction form
1,187,559.80/1,638,792.74 = 703,837.84/x - Step 3: Cross multiply
1,187,559.80x = 1,638,792.74 × 703,837.84 - Step 4: Simplify right side
1,187,559.80x = 1,153,444,342,329.28 - Step 5: Solve for x
x = 1,153,444,342,329.28/1,187,559.80 - Step 6: Final answer
x = 971,272.64
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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.