Finding the Fourth Proportional to 1,386,771.60, 2,080,387.80 and 545,350.80
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Solution
The fourth proportional to 1,386,771.60, 2,080,387.80 and 545,350.80 is: 818,116.81
Step by Step Solution
- Step 1: Write the proportion equation
1,386,771.60 : 2,080,387.80 = 545,350.80 : x - Step 2: Convert to fraction form
1,386,771.60/2,080,387.80 = 545,350.80/x - Step 3: Cross multiply
1,386,771.60x = 2,080,387.80 × 545,350.80 - Step 4: Simplify right side
1,386,771.60x = 1,134,541,151,040.24 - Step 5: Solve for x
x = 1,134,541,151,040.24/1,386,771.60 - Step 6: Final answer
x = 818,116.81
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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.