Finding the Fourth Proportional to 821,045.98, 1,133,020.73 and 453,516.53
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Solution
The fourth proportional to 821,045.98, 1,133,020.73 and 453,516.53 is: 625,840.26
Step by Step Solution
- Step 1: Write the proportion equation
821,045.98 : 1,133,020.73 = 453,516.53 : x - Step 2: Convert to fraction form
821,045.98/1,133,020.73 = 453,516.53/x - Step 3: Cross multiply
821,045.98x = 1,133,020.73 × 453,516.53 - Step 4: Simplify right side
821,045.98x = 513,843,632,685.13 - Step 5: Solve for x
x = 513,843,632,685.13/821,045.98 - Step 6: Final answer
x = 625,840.26
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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.