Finding the Fourth Proportional to 1,690,679.05, 2,331,776.66 and 1,486,292.96
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Solution
The fourth proportional to 1,690,679.05, 2,331,776.66 and 1,486,292.96 is: 2,049,888.32
Step by Step Solution
- Step 1: Write the proportion equation
1,690,679.05 : 2,331,776.66 = 1,486,292.96 : x - Step 2: Convert to fraction form
1,690,679.05/2,331,776.66 = 1,486,292.96/x - Step 3: Cross multiply
1,690,679.05x = 2,331,776.66 × 1,486,292.96 - Step 4: Simplify right side
1,690,679.05x = 3,465,703,232,192.45 - Step 5: Solve for x
x = 3,465,703,232,192.45/1,690,679.05 - Step 6: Final answer
x = 2,049,888.32
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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.