Finding the Fourth Proportional to 981,494.24, 1,355,494.63 and 874,506.88
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Solution
The fourth proportional to 981,494.24, 1,355,494.63 and 874,506.88 is: 1,207,739.52
Step by Step Solution
- Step 1: Write the proportion equation
981,494.24 : 1,355,494.63 = 874,506.88 : x - Step 2: Convert to fraction form
981,494.24/1,355,494.63 = 874,506.88/x - Step 3: Cross multiply
981,494.24x = 1,355,494.63 × 874,506.88 - Step 4: Simplify right side
981,494.24x = 1,185,389,378,426.31 - Step 5: Solve for x
x = 1,185,389,378,426.31/981,494.24 - Step 6: Final answer
x = 1,207,739.52
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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.