Finding the Fourth Proportional to 1,855,615.05, 2,560,705.40 and 1,091,717.79
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Solution
The fourth proportional to 1,855,615.05, 2,560,705.40 and 1,091,717.79 is: 1,506,545.03
Step by Step Solution
- Step 1: Write the proportion equation
1,855,615.05 : 2,560,705.40 = 1,091,717.79 : x - Step 2: Convert to fraction form
1,855,615.05/2,560,705.40 = 1,091,717.79/x - Step 3: Cross multiply
1,855,615.05x = 2,560,705.40 × 1,091,717.79 - Step 4: Simplify right side
1,855,615.05x = 2,795,567,634,670.48 - Step 5: Solve for x
x = 2,795,567,634,670.48/1,855,615.05 - Step 6: Final answer
x = 1,506,545.03
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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.