Finding the Fourth Proportional to 641,947.99, 885,877.36 and 355,461.92
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Solution
The fourth proportional to 641,947.99, 885,877.36 and 355,461.92 is: 490,531.43
Step by Step Solution
- Step 1: Write the proportion equation
641,947.99 : 885,877.36 = 355,461.92 : x - Step 2: Convert to fraction form
641,947.99/885,877.36 = 355,461.92/x - Step 3: Cross multiply
641,947.99x = 885,877.36 × 355,461.92 - Step 4: Simplify right side
641,947.99x = 314,895,667,270.13 - Step 5: Solve for x
x = 314,895,667,270.13/641,947.99 - Step 6: Final answer
x = 490,531.43
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1.5x scale
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.