Finding the Fourth Proportional to 1,070,680.84, 1,477,663 and 640,960.84
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Solution
The fourth proportional to 1,070,680.84, 1,477,663 and 640,960.84 is: 884,599.86
Step by Step Solution
- Step 1: Write the proportion equation
1,070,680.84 : 1,477,663 = 640,960.84 : x - Step 2: Convert to fraction form
1,070,680.84/1,477,663 = 640,960.84/x - Step 3: Cross multiply
1,070,680.84x = 1,477,663 × 640,960.84 - Step 4: Simplify right side
1,070,680.84x = 947,124,117,716.92 - Step 5: Solve for x
x = 947,124,117,716.92/1,070,680.84 - Step 6: Final answer
x = 884,599.86
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1.5x scale
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.