Finding the Fourth Proportional to 919,919.40, 1,379,782.05 and 246,068.70
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Solution
The fourth proportional to 919,919.40, 1,379,782.05 and 246,068.70 is: 369,077.09
Step by Step Solution
- Step 1: Write the proportion equation
919,919.40 : 1,379,782.05 = 246,068.70 : x - Step 2: Convert to fraction form
919,919.40/1,379,782.05 = 246,068.70/x - Step 3: Cross multiply
919,919.40x = 1,379,782.05 × 246,068.70 - Step 4: Simplify right side
919,919.40x = 339,521,176,991.17 - Step 5: Solve for x
x = 339,521,176,991.17/919,919.40 - Step 6: Final answer
x = 369,077.09
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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.