Finding the Fourth Proportional to 607,286.09, 910,319.50 and 207,653.56
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Solution
The fourth proportional to 607,286.09, 910,319.50 and 207,653.56 is: 311,271.88
Step by Step Solution
- Step 1: Write the proportion equation
607,286.09 : 910,319.50 = 207,653.56 : x - Step 2: Convert to fraction form
607,286.09/910,319.50 = 207,653.56/x - Step 3: Cross multiply
607,286.09x = 910,319.50 × 207,653.56 - Step 4: Simplify right side
607,286.09x = 189,031,084,912.42 - Step 5: Solve for x
x = 189,031,084,912.42/607,286.09 - Step 6: Final answer
x = 311,271.88
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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.