Finding the Fourth Proportional to 641,949.06, 885,878.76 and 355,462.99
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Solution
The fourth proportional to 641,949.06, 885,878.76 and 355,462.99 is: 490,532.87
Step by Step Solution
- Step 1: Write the proportion equation
641,949.06 : 885,878.76 = 355,462.99 : x - Step 2: Convert to fraction form
641,949.06/885,878.76 = 355,462.99/x - Step 3: Cross multiply
641,949.06x = 885,878.76 × 355,462.99 - Step 4: Simplify right side
641,949.06x = 314,897,112,807.09 - Step 5: Solve for x
x = 314,897,112,807.09/641,949.06 - Step 6: Final answer
x = 490,532.87
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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.