Finding the Fourth Proportional to 690,979.68, 1,036,322.64 and 291,466.08
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Solution
The fourth proportional to 690,979.68, 1,036,322.64 and 291,466.08 is: 437,137.16
Step by Step Solution
- Step 1: Write the proportion equation
690,979.68 : 1,036,322.64 = 291,466.08 : x - Step 2: Convert to fraction form
690,979.68/1,036,322.64 = 291,466.08/x - Step 3: Cross multiply
690,979.68x = 1,036,322.64 × 291,466.08 - Step 4: Simplify right side
690,979.68x = 302,052,897,496.05 - Step 5: Solve for x
x = 302,052,897,496.05/690,979.68 - Step 6: Final answer
x = 437,137.16
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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.