Finding the Fourth Proportional to 1,187,534.55, 1,638,757.82 and 703,812.53
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Solution
The fourth proportional to 1,187,534.55, 1,638,757.82 and 703,812.53 is: 971,237.66
Step by Step Solution
- Step 1: Write the proportion equation
1,187,534.55 : 1,638,757.82 = 703,812.53 : x - Step 2: Convert to fraction form
1,187,534.55/1,638,757.82 = 703,812.53/x - Step 3: Cross multiply
1,187,534.55x = 1,638,757.82 × 703,812.53 - Step 4: Simplify right side
1,187,534.55x = 1,153,378,275,638.63 - Step 5: Solve for x
x = 1,153,378,275,638.63/1,187,534.55 - Step 6: Final answer
x = 971,237.66
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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.