Finding the Fourth Proportional to 1,690,936.24, 2,330,841.36 and 1,281,398.62
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Solution
The fourth proportional to 1,690,936.24, 2,330,841.36 and 1,281,398.62 is: 1,766,321.42
Step by Step Solution
- Step 1: Write the proportion equation
1,690,936.24 : 2,330,841.36 = 1,281,398.62 : x - Step 2: Convert to fraction form
1,690,936.24/2,330,841.36 = 1,281,398.62/x - Step 3: Cross multiply
1,690,936.24x = 2,330,841.36 × 1,281,398.62 - Step 4: Simplify right side
1,690,936.24x = 2,986,736,896,315.82 - Step 5: Solve for x
x = 2,986,736,896,315.82/1,690,936.24 - Step 6: Final answer
x = 1,766,321.42
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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.