Finding the Fourth Proportional to 1,338,699.42, 1,845,844.20 and 998,577.18
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Solution
The fourth proportional to 1,338,699.42, 1,845,844.20 and 998,577.18 is: 1,376,872.11
Step by Step Solution
- Step 1: Write the proportion equation
1,338,699.42 : 1,845,844.20 = 998,577.18 : x - Step 2: Convert to fraction form
1,338,699.42/1,845,844.20 = 998,577.18/x - Step 3: Cross multiply
1,338,699.42x = 1,845,844.20 × 998,577.18 - Step 4: Simplify right side
1,338,699.42x = 1,843,217,895,955.36 - Step 5: Solve for x
x = 1,843,217,895,955.36/1,338,699.42 - Step 6: Final answer
x = 1,376,872.11
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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.