Finding the Fourth Proportional to 574,560,245.80, 861,840,368.70 and 393,161,717.80
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Solution
The fourth proportional to 574,560,245.80, 861,840,368.70 and 393,161,717.80 is: 589,742,576.70
Step by Step Solution
- Step 1: Write the proportion equation
574,560,245.80 : 861,840,368.70 = 393,161,717.80 : x - Step 2: Convert to fraction form
574,560,245.80/861,840,368.70 = 393,161,717.80/x - Step 3: Cross multiply
574,560,245.80x = 861,840,368.70 × 393,161,717.80 - Step 4: Simplify right side
574,560,245.80x = 338,842,639,827,477,376 - Step 5: Solve for x
x = 338,842,639,827,477,376/574,560,245.80 - Step 6: Final answer
x = 589,742,576.70
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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.