Finding the Fourth Proportional to 1,557,577.20, 2,336,438.70 and 492,702.60
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Solution
The fourth proportional to 1,557,577.20, 2,336,438.70 and 492,702.60 is: 739,076.96
Step by Step Solution
- Step 1: Write the proportion equation
1,557,577.20 : 2,336,438.70 = 492,702.60 : x - Step 2: Convert to fraction form
1,557,577.20/2,336,438.70 = 492,702.60/x - Step 3: Cross multiply
1,557,577.20x = 2,336,438.70 × 492,702.60 - Step 4: Simplify right side
1,557,577.20x = 1,151,169,422,230.62 - Step 5: Solve for x
x = 1,151,169,422,230.62/1,557,577.20 - Step 6: Final answer
x = 739,076.96
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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.