Finding the Fourth Proportional to 916,352.28, 1,373,976.18 and 410,821.74
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Solution
The fourth proportional to 916,352.28, 1,373,976.18 and 410,821.74 is: 615,985.03
Step by Step Solution
- Step 1: Write the proportion equation
916,352.28 : 1,373,976.18 = 410,821.74 : x - Step 2: Convert to fraction form
916,352.28/1,373,976.18 = 410,821.74/x - Step 3: Cross multiply
916,352.28x = 1,373,976.18 × 410,821.74 - Step 4: Simplify right side
916,352.28x = 564,459,284,986.15 - Step 5: Solve for x
x = 564,459,284,986.15/916,352.28 - Step 6: Final answer
x = 615,985.03
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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.