Finding the Fourth Proportional to 1,363,286.20, 1,881,113.70 and 790,214.44
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Solution
The fourth proportional to 1,363,286.20, 1,881,113.70 and 790,214.44 is: 1,090,367.68
Step by Step Solution
- Step 1: Write the proportion equation
1,363,286.20 : 1,881,113.70 = 790,214.44 : x - Step 2: Convert to fraction form
1,363,286.20/1,881,113.70 = 790,214.44/x - Step 3: Cross multiply
1,363,286.20x = 1,881,113.70 × 790,214.44 - Step 4: Simplify right side
1,363,286.20x = 1,486,483,209,021.83 - Step 5: Solve for x
x = 1,486,483,209,021.83/1,363,286.20 - Step 6: Final answer
x = 1,090,367.68
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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.