Finding the Fourth Proportional to 1,127,120.16, 1,554,518.87 and 990,862.77
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Solution
The fourth proportional to 1,127,120.16, 1,554,518.87 and 990,862.77 is: 1,366,593.31
Step by Step Solution
- Step 1: Write the proportion equation
1,127,120.16 : 1,554,518.87 = 990,862.77 : x - Step 2: Convert to fraction form
1,127,120.16/1,554,518.87 = 990,862.77/x - Step 3: Cross multiply
1,127,120.16x = 1,554,518.87 × 990,862.77 - Step 4: Simplify right side
1,127,120.16x = 1,540,314,860,818.56 - Step 5: Solve for x
x = 1,540,314,860,818.56/1,127,120.16 - Step 6: Final answer
x = 1,366,593.31
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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.