Finding the Fourth Proportional to 1,191,339.02, 1,644,286.97 and 707,811.09
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Solution
The fourth proportional to 1,191,339.02, 1,644,286.97 and 707,811.09 is: 976,921.37
Step by Step Solution
- Step 1: Write the proportion equation
1,191,339.02 : 1,644,286.97 = 707,811.09 : x - Step 2: Convert to fraction form
1,191,339.02/1,644,286.97 = 707,811.09/x - Step 3: Cross multiply
1,191,339.02x = 1,644,286.97 × 707,811.09 - Step 4: Simplify right side
1,191,339.02x = 1,163,844,552,508.50 - Step 5: Solve for x
x = 1,163,844,552,508.50/1,191,339.02 - Step 6: Final answer
x = 976,921.37
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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.