Finding the Fourth Proportional to 916,309.62, 1,373,912.15 and 410,779.08
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Solution
The fourth proportional to 916,309.62, 1,373,912.15 and 410,779.08 is: 615,921.03
Step by Step Solution
- Step 1: Write the proportion equation
916,309.62 : 1,373,912.15 = 410,779.08 : x - Step 2: Convert to fraction form
916,309.62/1,373,912.15 = 410,779.08/x - Step 3: Cross multiply
916,309.62x = 1,373,912.15 × 410,779.08 - Step 4: Simplify right side
916,309.62x = 564,374,366,923.93 - Step 5: Solve for x
x = 564,374,366,923.93/916,309.62 - Step 6: Final answer
x = 615,921.03
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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.