Finding the Fourth Proportional to 4,279,490.28, 6,420,219.57 and 1,400,949.95
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Solution
The fourth proportional to 4,279,490.28, 6,420,219.57 and 1,400,949.95 is: 2,101,747.09
Step by Step Solution
- Step 1: Write the proportion equation
4,279,490.28 : 6,420,219.57 = 1,400,949.95 : x - Step 2: Convert to fraction form
4,279,490.28/6,420,219.57 = 1,400,949.95/x - Step 3: Cross multiply
4,279,490.28x = 6,420,219.57 × 1,400,949.95 - Step 4: Simplify right side
4,279,490.28x = 8,994,406,253,479.42 - Step 5: Solve for x
x = 8,994,406,253,479.42/4,279,490.28 - Step 6: Final answer
x = 2,101,747.09
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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.