Finding the Fourth Proportional to 1,092,135.20, 1,638,202.80 and 997,656.80
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Solution
The fourth proportional to 1,092,135.20, 1,638,202.80 and 997,656.80 is: 1,496,485.20
Step by Step Solution
- Step 1: Write the proportion equation
1,092,135.20 : 1,638,202.80 = 997,656.80 : x - Step 2: Convert to fraction form
1,092,135.20/1,638,202.80 = 997,656.80/x - Step 3: Cross multiply
1,092,135.20x = 1,638,202.80 × 997,656.80 - Step 4: Simplify right side
1,092,135.20x = 1,634,364,163,199.04 - Step 5: Solve for x
x = 1,634,364,163,199.04/1,092,135.20 - Step 6: Final answer
x = 1,496,485.20
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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.