Finding the Fourth Proportional to 862,122.91, 1,189,766.39 and 480,149.70
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Solution
The fourth proportional to 862,122.91, 1,189,766.39 and 480,149.70 is: 662,627.07
Step by Step Solution
- Step 1: Write the proportion equation
862,122.91 : 1,189,766.39 = 480,149.70 : x - Step 2: Convert to fraction form
862,122.91/1,189,766.39 = 480,149.70/x - Step 3: Cross multiply
862,122.91x = 1,189,766.39 × 480,149.70 - Step 4: Simplify right side
862,122.91x = 571,265,975,228.58 - Step 5: Solve for x
x = 571,265,975,228.58/862,122.91 - Step 6: Final answer
x = 662,627.07
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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.