Finding the Fourth Proportional to 607,943.20, 912,243.12 and 253,202.08
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Solution
The fourth proportional to 607,943.20, 912,243.12 and 253,202.08 is: 379,939.86
Step by Step Solution
- Step 1: Write the proportion equation
607,943.20 : 912,243.12 = 253,202.08 : x - Step 2: Convert to fraction form
607,943.20/912,243.12 = 253,202.08/x - Step 3: Cross multiply
607,943.20x = 912,243.12 × 253,202.08 - Step 4: Simplify right side
607,943.20x = 230,981,855,449.69 - Step 5: Solve for x
x = 230,981,855,449.69/607,943.20 - Step 6: Final answer
x = 379,939.86
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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.