Finding the Fourth Proportional to 1,603,112.10, 2,213,793.36 and 1,031,145.18
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Solution
The fourth proportional to 1,603,112.10, 2,213,793.36 and 1,031,145.18 is: 1,423,944.31
Step by Step Solution
- Step 1: Write the proportion equation
1,603,112.10 : 2,213,793.36 = 1,031,145.18 : x - Step 2: Convert to fraction form
1,603,112.10/2,213,793.36 = 1,031,145.18/x - Step 3: Cross multiply
1,603,112.10x = 2,213,793.36 × 1,031,145.18 - Step 4: Simplify right side
1,603,112.10x = 2,282,742,352,680.01 - Step 5: Solve for x
x = 2,282,742,352,680.01/1,603,112.10 - Step 6: Final answer
x = 1,423,944.31
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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.