Finding the Fourth Proportional to 1,802,781.18, 2,487,838.77 and 987,037.74
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Solution
The fourth proportional to 1,802,781.18, 2,487,838.77 and 987,037.74 is: 1,362,112.49
Step by Step Solution
- Step 1: Write the proportion equation
1,802,781.18 : 2,487,838.77 = 987,037.74 : x - Step 2: Convert to fraction form
1,802,781.18/2,487,838.77 = 987,037.74/x - Step 3: Cross multiply
1,802,781.18x = 2,487,838.77 × 987,037.74 - Step 4: Simplify right side
1,802,781.18x = 2,455,590,757,025.18 - Step 5: Solve for x
x = 2,455,590,757,025.18/1,802,781.18 - Step 6: Final answer
x = 1,362,112.49
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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.