Finding the Fourth Proportional to 998,138.70, 1,497,208.05 and 366,921.90
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Solution
The fourth proportional to 998,138.70, 1,497,208.05 and 366,921.90 is: 550,382.85
Step by Step Solution
- Step 1: Write the proportion equation
998,138.70 : 1,497,208.05 = 366,921.90 : x - Step 2: Convert to fraction form
998,138.70/1,497,208.05 = 366,921.90/x - Step 3: Cross multiply
998,138.70x = 1,497,208.05 × 366,921.90 - Step 4: Simplify right side
998,138.70x = 549,358,422,401.30 - Step 5: Solve for x
x = 549,358,422,401.30/998,138.70 - Step 6: Final answer
x = 550,382.85
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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.