Finding the Fourth Proportional to 1,686,790.36, 2,328,070.38 and 998,844.10
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Solution
The fourth proportional to 1,686,790.36, 2,328,070.38 and 998,844.10 is: 1,378,582.32
Step by Step Solution
- Step 1: Write the proportion equation
1,686,790.36 : 2,328,070.38 = 998,844.10 : x - Step 2: Convert to fraction form
1,686,790.36/2,328,070.38 = 998,844.10/x - Step 3: Cross multiply
1,686,790.36x = 2,328,070.38 × 998,844.10 - Step 4: Simplify right side
1,686,790.36x = 2,325,379,363,447.76 - Step 5: Solve for x
x = 2,325,379,363,447.76/1,686,790.36 - Step 6: Final answer
x = 1,378,582.32
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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.