Finding the Fourth Proportional to 518,237.58, 777,771.09 and 268,990.86
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Solution
The fourth proportional to 518,237.58, 777,771.09 and 268,990.86 is: 403,701.55
Step by Step Solution
- Step 1: Write the proportion equation
518,237.58 : 777,771.09 = 268,990.86 : x - Step 2: Convert to fraction form
518,237.58/777,771.09 = 268,990.86/x - Step 3: Cross multiply
518,237.58x = 777,771.09 × 268,990.86 - Step 4: Simplify right side
518,237.58x = 209,213,314,382.24 - Step 5: Solve for x
x = 209,213,314,382.24/518,237.58 - Step 6: Final answer
x = 403,701.55
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1.5x scale
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.