Finding the Fourth Proportional to 1,097,823.78, 1,646,399.52 and 387,685.44
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Solution
The fourth proportional to 1,097,823.78, 1,646,399.52 and 387,685.44 is: 581,409.45
Step by Step Solution
- Step 1: Write the proportion equation
1,097,823.78 : 1,646,399.52 = 387,685.44 : x - Step 2: Convert to fraction form
1,097,823.78/1,646,399.52 = 387,685.44/x - Step 3: Cross multiply
1,097,823.78x = 1,646,399.52 × 387,685.44 - Step 4: Simplify right side
1,097,823.78x = 638,285,122,326.99 - Step 5: Solve for x
x = 638,285,122,326.99/1,097,823.78 - Step 6: Final answer
x = 581,409.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.