Finding the Fourth Proportional to 1,007,792.75, 1,390,753.97 and 555,083.75
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Solution
The fourth proportional to 1,007,792.75, 1,390,753.97 and 555,083.75 is: 766,015.56
Step by Step Solution
- Step 1: Write the proportion equation
1,007,792.75 : 1,390,753.97 = 555,083.75 : x - Step 2: Convert to fraction form
1,007,792.75/1,390,753.97 = 555,083.75/x - Step 3: Cross multiply
1,007,792.75x = 1,390,753.97 × 555,083.75 - Step 4: Simplify right side
1,007,792.75x = 771,984,931,778.02 - Step 5: Solve for x
x = 771,984,931,778.02/1,007,792.75 - Step 6: Final answer
x = 766,015.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.