Finding the Fourth Proportional to 690,727.50, 1,036,681.74 and 270,298.62
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Solution
The fourth proportional to 690,727.50, 1,036,681.74 and 270,298.62 is: 405,679.00
Step by Step Solution
- Step 1: Write the proportion equation
690,727.50 : 1,036,681.74 = 270,298.62 : x - Step 2: Convert to fraction form
690,727.50/1,036,681.74 = 270,298.62/x - Step 3: Cross multiply
690,727.50x = 1,036,681.74 × 270,298.62 - Step 4: Simplify right side
690,727.50x = 280,213,643,701.20 - Step 5: Solve for x
x = 280,213,643,701.20/690,727.50 - Step 6: Final answer
x = 405,679.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.