Finding the Fourth Proportional to 821,817.81, 1,134,221.13 and 472,950.81
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Solution
The fourth proportional to 821,817.81, 1,134,221.13 and 472,950.81 is: 652,736.89
Step by Step Solution
- Step 1: Write the proportion equation
821,817.81 : 1,134,221.13 = 472,950.81 : x - Step 2: Convert to fraction form
821,817.81/1,134,221.13 = 472,950.81/x - Step 3: Cross multiply
821,817.81x = 1,134,221.13 × 472,950.81 - Step 4: Simplify right side
821,817.81x = 536,430,802,152.62 - Step 5: Solve for x
x = 536,430,802,152.62/821,817.81 - Step 6: Final answer
x = 652,736.89
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1.5x scale
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.