Finding the Fourth Proportional to 485,135.60, 727,703.40 and 471,311.60
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Solution
The fourth proportional to 485,135.60, 727,703.40 and 471,311.60 is: 706,967.40
Step by Step Solution
- Step 1: Write the proportion equation
485,135.60 : 727,703.40 = 471,311.60 : x - Step 2: Convert to fraction form
485,135.60/727,703.40 = 471,311.60/x - Step 3: Cross multiply
485,135.60x = 727,703.40 × 471,311.60 - Step 4: Simplify right side
485,135.60x = 342,975,053,779.44 - Step 5: Solve for x
x = 342,975,053,779.44/485,135.60 - Step 6: Final answer
x = 706,967.40
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1.5x scale
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.