Finding the Fourth Proportional to 678,506.19, 936,302.00 and 376,680.75
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Solution
The fourth proportional to 678,506.19, 936,302.00 and 376,680.75 is: 519,799.15
Step by Step Solution
- Step 1: Write the proportion equation
678,506.19 : 936,302.00 = 376,680.75 : x - Step 2: Convert to fraction form
678,506.19/936,302.00 = 376,680.75/x - Step 3: Cross multiply
678,506.19x = 936,302.00 × 376,680.75 - Step 4: Simplify right side
678,506.19x = 352,686,937,703.10 - Step 5: Solve for x
x = 352,686,937,703.10/678,506.19 - Step 6: Final answer
x = 519,799.15
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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.