Finding the Fourth Proportional to 1,003,841.36, 1,385,283.84 and 551,129.12
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Solution
The fourth proportional to 1,003,841.36, 1,385,283.84 and 551,129.12 is: 760,548.72
Step by Step Solution
- Step 1: Write the proportion equation
1,003,841.36 : 1,385,283.84 = 551,129.12 : x - Step 2: Convert to fraction form
1,003,841.36/1,385,283.84 = 551,129.12/x - Step 3: Cross multiply
1,003,841.36x = 1,385,283.84 × 551,129.12 - Step 4: Simplify right side
1,003,841.36x = 763,470,263,689.42 - Step 5: Solve for x
x = 763,470,263,689.42/1,003,841.36 - Step 6: Final answer
x = 760,548.72
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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.