Finding the Fourth Proportional to 641,567.99, 885,360.48 and 355,078.28
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Solution
The fourth proportional to 641,567.99, 885,360.48 and 355,078.28 is: 490,006.17
Step by Step Solution
- Step 1: Write the proportion equation
641,567.99 : 885,360.48 = 355,078.28 : x - Step 2: Convert to fraction form
641,567.99/885,360.48 = 355,078.28/x - Step 3: Cross multiply
641,567.99x = 885,360.48 × 355,078.28 - Step 4: Simplify right side
641,567.99x = 314,372,277,300.23 - Step 5: Solve for x
x = 314,372,277,300.23/641,567.99 - Step 6: Final answer
x = 490,006.17
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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.