Finding the Fourth Proportional to 3,612,924.24, 4,985,377.21 and 1,980,902.15
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Solution
The fourth proportional to 3,612,924.24, 4,985,377.21 and 1,980,902.15 is: 2,733,393.71
Step by Step Solution
- Step 1: Write the proportion equation
3,612,924.24 : 4,985,377.21 = 1,980,902.15 : x - Step 2: Convert to fraction form
3,612,924.24/4,985,377.21 = 1,980,902.15/x - Step 3: Cross multiply
3,612,924.24x = 4,985,377.21 × 1,980,902.15 - Step 4: Simplify right side
3,612,924.24x = 9,875,544,399,018.61 - Step 5: Solve for x
x = 9,875,544,399,018.61/3,612,924.24 - Step 6: Final answer
x = 2,733,393.71
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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.