Finding the Fourth Proportional to 1,191,343.02, 1,644,292.49 and 707,815.09
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Solution
The fourth proportional to 1,191,343.02, 1,644,292.49 and 707,815.09 is: 976,926.89
Step by Step Solution
- Step 1: Write the proportion equation
1,191,343.02 : 1,644,292.49 = 707,815.09 : x - Step 2: Convert to fraction form
1,191,343.02/1,644,292.49 = 707,815.09/x - Step 3: Cross multiply
1,191,343.02x = 1,644,292.49 × 707,815.09 - Step 4: Simplify right side
1,191,343.02x = 1,163,855,036,795.67 - Step 5: Solve for x
x = 1,163,855,036,795.67/1,191,343.02 - Step 6: Final answer
x = 976,926.89
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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.