Finding the Fourth Proportional to 1,224,883.49, 1,690,339.79 and 708,707.75
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Solution
The fourth proportional to 1,224,883.49, 1,690,339.79 and 708,707.75 is: 978,017.03
Step by Step Solution
- Step 1: Write the proportion equation
1,224,883.49 : 1,690,339.79 = 708,707.75 : x - Step 2: Convert to fraction form
1,224,883.49/1,690,339.79 = 708,707.75/x - Step 3: Cross multiply
1,224,883.49x = 1,690,339.79 × 708,707.75 - Step 4: Simplify right side
1,224,883.49x = 1,197,956,902,626.44 - Step 5: Solve for x
x = 1,197,956,902,626.44/1,224,883.49 - Step 6: Final answer
x = 978,017.03
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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.