Finding the Fourth Proportional to 981,235.14, 1,354,142.82 and 551,513.94
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Solution
The fourth proportional to 981,235.14, 1,354,142.82 and 551,513.94 is: 761,110.78
Step by Step Solution
- Step 1: Write the proportion equation
981,235.14 : 1,354,142.82 = 551,513.94 : x - Step 2: Convert to fraction form
981,235.14/1,354,142.82 = 551,513.94/x - Step 3: Cross multiply
981,235.14x = 1,354,142.82 × 551,513.94 - Step 4: Simplify right side
981,235.14x = 746,828,641,980.91 - Step 5: Solve for x
x = 746,828,641,980.91/981,235.14 - Step 6: Final answer
x = 761,110.78
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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.