Finding the Fourth Proportional to 916,923.70, 1,375,320.57 and 242,990.05
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Solution
The fourth proportional to 916,923.70, 1,375,320.57 and 242,990.05 is: 364,467.85
Step by Step Solution
- Step 1: Write the proportion equation
916,923.70 : 1,375,320.57 = 242,990.05 : x - Step 2: Convert to fraction form
916,923.70/1,375,320.57 = 242,990.05/x - Step 3: Cross multiply
916,923.70x = 1,375,320.57 × 242,990.05 - Step 4: Simplify right side
916,923.70x = 334,189,214,070.33 - Step 5: Solve for x
x = 334,189,214,070.33/916,923.70 - Step 6: Final answer
x = 364,467.85
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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.