Finding the Fourth Proportional to 999,704.18, 1,379,588.74 and 540,818.62
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Solution
The fourth proportional to 999,704.18, 1,379,588.74 and 540,818.62 is: 746,328.05
Step by Step Solution
- Step 1: Write the proportion equation
999,704.18 : 1,379,588.74 = 540,818.62 : x - Step 2: Convert to fraction form
999,704.18/1,379,588.74 = 540,818.62/x - Step 3: Cross multiply
999,704.18x = 1,379,588.74 × 540,818.62 - Step 4: Simplify right side
999,704.18x = 746,107,268,932.30 - Step 5: Solve for x
x = 746,107,268,932.30/999,704.18 - Step 6: Final answer
x = 746,328.05
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1.5x scale
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.