Finding the Fourth Proportional to 811,211.81, 1,119,622.05 and 521,185.93
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Solution
The fourth proportional to 811,211.81, 1,119,622.05 and 521,185.93 is: 719,332.80
Step by Step Solution
- Step 1: Write the proportion equation
811,211.81 : 1,119,622.05 = 521,185.93 : x - Step 2: Convert to fraction form
811,211.81/1,119,622.05 = 521,185.93/x - Step 3: Cross multiply
811,211.81x = 1,119,622.05 × 521,185.93 - Step 4: Simplify right side
811,211.81x = 583,531,259,377.76 - Step 5: Solve for x
x = 583,531,259,377.76/811,211.81 - Step 6: Final answer
x = 719,332.80
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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.