Finding the Fourth Proportional to 812,363.01, 1,121,095.99 and 449,786.87
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Solution
The fourth proportional to 812,363.01, 1,121,095.99 and 449,786.87 is: 620,725.28
Step by Step Solution
- Step 1: Write the proportion equation
812,363.01 : 1,121,095.99 = 449,786.87 : x - Step 2: Convert to fraction form
812,363.01/1,121,095.99 = 449,786.87/x - Step 3: Cross multiply
812,363.01x = 1,121,095.99 × 449,786.87 - Step 4: Simplify right side
812,363.01x = 504,254,259,248.63 - Step 5: Solve for x
x = 504,254,259,248.63/812,363.01 - Step 6: Final answer
x = 620,725.28
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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.