Finding the Fourth Proportional to 659,743.80, 989,615.70 and 304,639.80
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Solution
The fourth proportional to 659,743.80, 989,615.70 and 304,639.80 is: 456,959.70
Step by Step Solution
- Step 1: Write the proportion equation
659,743.80 : 989,615.70 = 304,639.80 : x - Step 2: Convert to fraction form
659,743.80/989,615.70 = 304,639.80/x - Step 3: Cross multiply
659,743.80x = 989,615.70 × 304,639.80 - Step 4: Simplify right side
659,743.80x = 301,476,328,924.86 - Step 5: Solve for x
x = 301,476,328,924.86/659,743.80 - Step 6: Final answer
x = 456,959.70
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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.