Finding the Fourth Proportional to 678,574.26, 936,547.65 and 392,260.32
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Solution
The fourth proportional to 678,574.26, 936,547.65 and 392,260.32 is: 541,385.82
Step by Step Solution
- Step 1: Write the proportion equation
678,574.26 : 936,547.65 = 392,260.32 : x - Step 2: Convert to fraction form
678,574.26/936,547.65 = 392,260.32/x - Step 3: Cross multiply
678,574.26x = 936,547.65 × 392,260.32 - Step 4: Simplify right side
678,574.26x = 367,370,480,884.25 - Step 5: Solve for x
x = 367,370,480,884.25/678,574.26 - Step 6: Final answer
x = 541,385.82
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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.