Finding the Fourth Proportional to 690,980.68, 1,036,324.14 and 291,467.08
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Solution
The fourth proportional to 690,980.68, 1,036,324.14 and 291,467.08 is: 437,138.66
Step by Step Solution
- Step 1: Write the proportion equation
690,980.68 : 1,036,324.14 = 291,467.08 : x - Step 2: Convert to fraction form
690,980.68/1,036,324.14 = 291,467.08/x - Step 3: Cross multiply
690,980.68x = 1,036,324.14 × 291,467.08 - Step 4: Simplify right side
690,980.68x = 302,054,371,019.31 - Step 5: Solve for x
x = 302,054,371,019.31/690,980.68 - Step 6: Final answer
x = 437,138.66
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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.