Finding the Fourth Proportional to 1,070,775.28, 1,477,716.11 and 640,972.36
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Solution
The fourth proportional to 1,070,775.28, 1,477,716.11 and 640,972.36 is: 884,569.53
Step by Step Solution
- Step 1: Write the proportion equation
1,070,775.28 : 1,477,716.11 = 640,972.36 : x - Step 2: Convert to fraction form
1,070,775.28/1,477,716.11 = 640,972.36/x - Step 3: Cross multiply
1,070,775.28x = 1,477,716.11 × 640,972.36 - Step 4: Simplify right side
1,070,775.28x = 947,175,182,436.72 - Step 5: Solve for x
x = 947,175,182,436.72/1,070,775.28 - Step 6: Final answer
x = 884,569.53
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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.