Finding the Fourth Proportional to 3,574,156.40, 5,360,620.20 and 1,329,138.80
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Solution
The fourth proportional to 3,574,156.40, 5,360,620.20 and 1,329,138.80 is: 1,993,479.72
Step by Step Solution
- Step 1: Write the proportion equation
3,574,156.40 : 5,360,620.20 = 1,329,138.80 : x - Step 2: Convert to fraction form
3,574,156.40/5,360,620.20 = 1,329,138.80/x - Step 3: Cross multiply
3,574,156.40x = 5,360,620.20 × 1,329,138.80 - Step 4: Simplify right side
3,574,156.40x = 7,125,008,299,883.76 - Step 5: Solve for x
x = 7,125,008,299,883.76/3,574,156.40 - Step 6: Final answer
x = 1,993,479.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.