Finding the Fourth Proportional to 985,983.29, 1,479,138.44 and 346,121.09
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Solution
The fourth proportional to 985,983.29, 1,479,138.44 and 346,121.09 is: 519,239.03
Step by Step Solution
- Step 1: Write the proportion equation
985,983.29 : 1,479,138.44 = 346,121.09 : x - Step 2: Convert to fraction form
985,983.29/1,479,138.44 = 346,121.09/x - Step 3: Cross multiply
985,983.29x = 1,479,138.44 × 346,121.09 - Step 4: Simplify right side
985,983.29x = 511,960,999,987.40 - Step 5: Solve for x
x = 511,960,999,987.40/985,983.29 - Step 6: Final answer
x = 519,239.03
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.