Finding the Fourth Proportional to 1,972,424.18, 2,721,918.90 and 1,101,272.25
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Solution
The fourth proportional to 1,972,424.18, 2,721,918.90 and 1,101,272.25 is: 1,519,740.93
Step by Step Solution
- Step 1: Write the proportion equation
1,972,424.18 : 2,721,918.90 = 1,101,272.25 : x - Step 2: Convert to fraction form
1,972,424.18/2,721,918.90 = 1,101,272.25/x - Step 3: Cross multiply
1,972,424.18x = 2,721,918.90 × 1,101,272.25 - Step 4: Simplify right side
1,972,424.18x = 2,997,573,751,320.53 - Step 5: Solve for x
x = 2,997,573,751,320.53/1,972,424.18 - Step 6: Final answer
x = 1,519,740.93
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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.