Finding the Fourth Proportional to 862,201.46, 1,189,730.18 and 499,618.70
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Solution
The fourth proportional to 862,201.46, 1,189,730.18 and 499,618.70 is: 689,411.32
Step by Step Solution
- Step 1: Write the proportion equation
862,201.46 : 1,189,730.18 = 499,618.70 : x - Step 2: Convert to fraction form
862,201.46/1,189,730.18 = 499,618.70/x - Step 3: Cross multiply
862,201.46x = 1,189,730.18 × 499,618.70 - Step 4: Simplify right side
862,201.46x = 594,411,445,882.37 - Step 5: Solve for x
x = 594,411,445,882.37/862,201.46 - Step 6: Final answer
x = 689,411.32
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1.5x scale
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.