Finding the Fourth Proportional to 689,195.19, 1,033,792.80 and 314,955.75
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Solution
The fourth proportional to 689,195.19, 1,033,792.80 and 314,955.75 is: 472,433.63
Step by Step Solution
- Step 1: Write the proportion equation
689,195.19 : 1,033,792.80 = 314,955.75 : x - Step 2: Convert to fraction form
689,195.19/1,033,792.80 = 314,955.75/x - Step 3: Cross multiply
689,195.19x = 1,033,792.80 × 314,955.75 - Step 4: Simplify right side
689,195.19x = 325,598,986,668.60 - Step 5: Solve for x
x = 325,598,986,668.60/689,195.19 - Step 6: Final answer
x = 472,433.63
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Similar ratio
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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.