Finding the Fourth Proportional to 861,436.36, 1,188,793.44 and 474,296.80
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Solution
The fourth proportional to 861,436.36, 1,188,793.44 and 474,296.80 is: 654,535.79
Step by Step Solution
- Step 1: Write the proportion equation
861,436.36 : 1,188,793.44 = 474,296.80 : x - Step 2: Convert to fraction form
861,436.36/1,188,793.44 = 474,296.80/x - Step 3: Cross multiply
861,436.36x = 1,188,793.44 × 474,296.80 - Step 4: Simplify right side
861,436.36x = 563,840,924,452.99 - Step 5: Solve for x
x = 563,840,924,452.99/861,436.36 - Step 6: Final answer
x = 654,535.79
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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.