Finding the Fourth Proportional to 627,946.80, 941,920.20 and 207,121.20
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Solution
The fourth proportional to 627,946.80, 941,920.20 and 207,121.20 is: 310,681.80
Step by Step Solution
- Step 1: Write the proportion equation
627,946.80 : 941,920.20 = 207,121.20 : x - Step 2: Convert to fraction form
627,946.80/941,920.20 = 207,121.20/x - Step 3: Cross multiply
627,946.80x = 941,920.20 × 207,121.20 - Step 4: Simplify right side
627,946.80x = 195,091,642,128.24 - Step 5: Solve for x
x = 195,091,642,128.24/627,946.80 - Step 6: Final answer
x = 310,681.80
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Double scale
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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.