Finding the Fourth Proportional to 2,015,556.06, 2,781,467.40 and 1,110,138.06
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Solution
The fourth proportional to 2,015,556.06, 2,781,467.40 and 1,110,138.06 is: 1,531,990.54
Step by Step Solution
- Step 1: Write the proportion equation
2,015,556.06 : 2,781,467.40 = 1,110,138.06 : x - Step 2: Convert to fraction form
2,015,556.06/2,781,467.40 = 1,110,138.06/x - Step 3: Cross multiply
2,015,556.06x = 2,781,467.40 × 1,110,138.06 - Step 4: Simplify right side
2,015,556.06x = 3,087,812,823,389.24 - Step 5: Solve for x
x = 3,087,812,823,389.24/2,015,556.06 - Step 6: Final answer
x = 1,531,990.54
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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.