Finding the Fourth Proportional to 858,772.91, 1,286,197.42 and 409,809.14
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Solution
The fourth proportional to 858,772.91, 1,286,197.42 and 409,809.14 is: 613,777.46
Step by Step Solution
- Step 1: Write the proportion equation
858,772.91 : 1,286,197.42 = 409,809.14 : x - Step 2: Convert to fraction form
858,772.91/1,286,197.42 = 409,809.14/x - Step 3: Cross multiply
858,772.91x = 1,286,197.42 × 409,809.14 - Step 4: Simplify right side
858,772.91x = 527,095,458,560.42 - Step 5: Solve for x
x = 527,095,458,560.42/858,772.91 - Step 6: Final answer
x = 613,777.46
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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.