Finding the Fourth Proportional to 788,424.75, 1,088,026.29 and 430,728.75
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Solution
The fourth proportional to 788,424.75, 1,088,026.29 and 430,728.75 is: 594,405.75
Step by Step Solution
- Step 1: Write the proportion equation
788,424.75 : 1,088,026.29 = 430,728.75 : x - Step 2: Convert to fraction form
788,424.75/1,088,026.29 = 430,728.75/x - Step 3: Cross multiply
788,424.75x = 1,088,026.29 × 430,728.75 - Step 4: Simplify right side
788,424.75x = 468,644,203,858.84 - Step 5: Solve for x
x = 468,644,203,858.84/788,424.75 - Step 6: Final answer
x = 594,405.75
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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.