Finding the Fourth Proportional to 783,679.19, 1,175,520.09 and 215,068.10
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Solution
The fourth proportional to 783,679.19, 1,175,520.09 and 215,068.10 is: 322,602.51
Step by Step Solution
- Step 1: Write the proportion equation
783,679.19 : 1,175,520.09 = 215,068.10 : x - Step 2: Convert to fraction form
783,679.19/1,175,520.09 = 215,068.10/x - Step 3: Cross multiply
783,679.19x = 1,175,520.09 × 215,068.10 - Step 4: Simplify right side
783,679.19x = 252,816,872,268.13 - Step 5: Solve for x
x = 252,816,872,268.13/783,679.19 - Step 6: Final answer
x = 322,602.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.