Finding the Fourth Proportional to 1,646,077.01, 2,271,148.22 and 1,129,988.75
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Solution
The fourth proportional to 1,646,077.01, 2,271,148.22 and 1,129,988.75 is: 1,559,083.76
Step by Step Solution
- Step 1: Write the proportion equation
1,646,077.01 : 2,271,148.22 = 1,129,988.75 : x - Step 2: Convert to fraction form
1,646,077.01/2,271,148.22 = 1,129,988.75/x - Step 3: Cross multiply
1,646,077.01x = 2,271,148.22 × 1,129,988.75 - Step 4: Simplify right side
1,646,077.01x = 2,566,371,932,532.58 - Step 5: Solve for x
x = 2,566,371,932,532.58/1,646,077.01 - Step 6: Final answer
x = 1,559,083.76
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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.