Finding the Fourth Proportional to 1,537,490.88, 2,121,736.80 and 858,427.20
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Solution
The fourth proportional to 1,537,490.88, 2,121,736.80 and 858,427.20 is: 1,184,629.19
Step by Step Solution
- Step 1: Write the proportion equation
1,537,490.88 : 2,121,736.80 = 858,427.20 : x - Step 2: Convert to fraction form
1,537,490.88/2,121,736.80 = 858,427.20/x - Step 3: Cross multiply
1,537,490.88x = 2,121,736.80 × 858,427.20 - Step 4: Simplify right side
1,537,490.88x = 1,821,356,580,360.96 - Step 5: Solve for x
x = 1,821,356,580,360.96/1,537,490.88 - Step 6: Final answer
x = 1,184,629.19
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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.