Finding the Fourth Proportional to 667,802.08, 921,569.70 and 361,879.12
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Solution
The fourth proportional to 667,802.08, 921,569.70 and 361,879.12 is: 499,394.72
Step by Step Solution
- Step 1: Write the proportion equation
667,802.08 : 921,569.70 = 361,879.12 : x - Step 2: Convert to fraction form
667,802.08/921,569.70 = 361,879.12/x - Step 3: Cross multiply
667,802.08x = 921,569.70 × 361,879.12 - Step 4: Simplify right side
667,802.08x = 333,496,832,054.66 - Step 5: Solve for x
x = 333,496,832,054.66/667,802.08 - Step 6: Final answer
x = 499,394.72
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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.