Finding the Fourth Proportional to 1,121,784.93, 1,548,062.58 and 612,487.31
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Solution
The fourth proportional to 1,121,784.93, 1,548,062.58 and 612,487.31 is: 845,232.14
Step by Step Solution
- Step 1: Write the proportion equation
1,121,784.93 : 1,548,062.58 = 612,487.31 : x - Step 2: Convert to fraction form
1,121,784.93/1,548,062.58 = 612,487.31/x - Step 3: Cross multiply
1,121,784.93x = 1,548,062.58 × 612,487.31 - Step 4: Simplify right side
1,121,784.93x = 948,168,679,892.37 - Step 5: Solve for x
x = 948,168,679,892.37/1,121,784.93 - Step 6: Final answer
x = 845,232.14
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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.