Finding the Fourth Proportional to 1,181,276.80, 1,629,595.20 and 858,486.40
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Solution
The fourth proportional to 1,181,276.80, 1,629,595.20 and 858,486.40 is: 1,184,299.32
Step by Step Solution
- Step 1: Write the proportion equation
1,181,276.80 : 1,629,595.20 = 858,486.40 : x - Step 2: Convert to fraction form
1,181,276.80/1,629,595.20 = 858,486.40/x - Step 3: Cross multiply
1,181,276.80x = 1,629,595.20 × 858,486.40 - Step 4: Simplify right side
1,181,276.80x = 1,398,985,316,705.28 - Step 5: Solve for x
x = 1,398,985,316,705.28/1,181,276.80 - Step 6: Final answer
x = 1,184,299.32
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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.