Finding the Fourth Proportional to 999,798.36, 1,379,717.96 and 540,911.49
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Solution
The fourth proportional to 999,798.36, 1,379,717.96 and 540,911.49 is: 746,455.81
Step by Step Solution
- Step 1: Write the proportion equation
999,798.36 : 1,379,717.96 = 540,911.49 : x - Step 2: Convert to fraction form
999,798.36/1,379,717.96 = 540,911.49/x - Step 3: Cross multiply
999,798.36x = 1,379,717.96 × 540,911.49 - Step 4: Simplify right side
999,798.36x = 746,305,294,818.80 - Step 5: Solve for x
x = 746,305,294,818.80/999,798.36 - Step 6: Final answer
x = 746,455.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.