Finding the Fourth Proportional to 1,972,101.68, 2,721,445.09 and 1,112,741.90
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Solution
The fourth proportional to 1,972,101.68, 2,721,445.09 and 1,112,741.90 is: 1,535,552.66
Step by Step Solution
- Step 1: Write the proportion equation
1,972,101.68 : 2,721,445.09 = 1,112,741.90 : x - Step 2: Convert to fraction form
1,972,101.68/2,721,445.09 = 1,112,741.90/x - Step 3: Cross multiply
1,972,101.68x = 2,721,445.09 × 1,112,741.90 - Step 4: Simplify right side
1,972,101.68x = 3,028,265,963,803.19 - Step 5: Solve for x
x = 3,028,265,963,803.19/1,972,101.68 - Step 6: Final answer
x = 1,535,552.66
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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.