Finding the Fourth Proportional to 872,226.68, 1,203,706.94 and 490,252.28
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Solution
The fourth proportional to 872,226.68, 1,203,706.94 and 490,252.28 is: 676,567.33
Step by Step Solution
- Step 1: Write the proportion equation
872,226.68 : 1,203,706.94 = 490,252.28 : x - Step 2: Convert to fraction form
872,226.68/1,203,706.94 = 490,252.28/x - Step 3: Cross multiply
872,226.68x = 1,203,706.94 × 490,252.28 - Step 4: Simplify right side
872,226.68x = 590,120,071,786.82 - Step 5: Solve for x
x = 590,120,071,786.82/872,226.68 - Step 6: Final answer
x = 676,567.33
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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.