Finding the Fourth Proportional to 2,153,358.28, 2,972,207.46 and 1,271,083.19
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Solution
The fourth proportional to 2,153,358.28, 2,972,207.46 and 1,271,083.19 is: 1,754,433.05
Step by Step Solution
- Step 1: Write the proportion equation
2,153,358.28 : 2,972,207.46 = 1,271,083.19 : x - Step 2: Convert to fraction form
2,153,358.28/2,972,207.46 = 1,271,083.19/x - Step 3: Cross multiply
2,153,358.28x = 2,972,207.46 × 1,271,083.19 - Step 4: Simplify right side
2,153,358.28x = 3,777,922,939,598.60 - Step 5: Solve for x
x = 3,777,922,939,598.60/2,153,358.28 - Step 6: Final answer
x = 1,754,433.05
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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.