Finding the Fourth Proportional to 919,605.95, 1,268,910.02 and 517,120.19
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Solution
The fourth proportional to 919,605.95, 1,268,910.02 and 517,120.19 is: 713,543.65
Step by Step Solution
- Step 1: Write the proportion equation
919,605.95 : 1,268,910.02 = 517,120.19 : x - Step 2: Convert to fraction form
919,605.95/1,268,910.02 = 517,120.19/x - Step 3: Cross multiply
919,605.95x = 1,268,910.02 × 517,120.19 - Step 4: Simplify right side
919,605.95x = 656,178,990,635.30 - Step 5: Solve for x
x = 656,178,990,635.30/919,605.95 - Step 6: Final answer
x = 713,543.65
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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.