Finding the Fourth Proportional to 992,959.80, 1,489,439.70 and 992,959.80
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Solution
The fourth proportional to 992,959.80, 1,489,439.70 and 992,959.80 is: 1,489,439.70
Step by Step Solution
- Step 1: Write the proportion equation
992,959.80 : 1,489,439.70 = 992,959.80 : x - Step 2: Convert to fraction form
992,959.80/1,489,439.70 = 992,959.80/x - Step 3: Cross multiply
992,959.80x = 1,489,439.70 × 992,959.80 - Step 4: Simplify right side
992,959.80x = 1,478,953,746,624.06 - Step 5: Solve for x
x = 1,478,953,746,624.06/992,959.80 - Step 6: Final answer
x = 1,489,439.70
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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.