Finding the Fourth Proportional to 641,671.73, 885,506.99 and 355,191.81
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Solution
The fourth proportional to 641,671.73, 885,506.99 and 355,191.81 is: 490,164.70
Step by Step Solution
- Step 1: Write the proportion equation
641,671.73 : 885,506.99 = 355,191.81 : x - Step 2: Convert to fraction form
641,671.73/885,506.99 = 355,191.81/x - Step 3: Cross multiply
641,671.73x = 885,506.99 × 355,191.81 - Step 4: Simplify right side
641,671.73x = 314,524,828,769.79 - Step 5: Solve for x
x = 314,524,828,769.79/641,671.73 - Step 6: Final answer
x = 490,164.70
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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.