Finding the Fourth Proportional to 1,387,283.08, 1,914,445.11 and 775,435.18
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Solution
The fourth proportional to 1,387,283.08, 1,914,445.11 and 775,435.18 is: 1,070,097.45
Step by Step Solution
- Step 1: Write the proportion equation
1,387,283.08 : 1,914,445.11 = 775,435.18 : x - Step 2: Convert to fraction form
1,387,283.08/1,914,445.11 = 775,435.18/x - Step 3: Cross multiply
1,387,283.08x = 1,914,445.11 × 775,435.18 - Step 4: Simplify right side
1,387,283.08x = 1,484,528,088,472.97 - Step 5: Solve for x
x = 1,484,528,088,472.97/1,387,283.08 - Step 6: Final answer
x = 1,070,097.45
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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.