Finding the Fourth Proportional to 885,396.42, 1,221,723.81 and 503,380.98
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Solution
The fourth proportional to 885,396.42, 1,221,723.81 and 503,380.98 is: 694,595.68
Step by Step Solution
- Step 1: Write the proportion equation
885,396.42 : 1,221,723.81 = 503,380.98 : x - Step 2: Convert to fraction form
885,396.42/1,221,723.81 = 503,380.98/x - Step 3: Cross multiply
885,396.42x = 1,221,723.81 × 503,380.98 - Step 4: Simplify right side
885,396.42x = 614,992,528,767.13 - Step 5: Solve for x
x = 614,992,528,767.13/885,396.42 - Step 6: Final answer
x = 694,595.68
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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.