Finding the Fourth Proportional to 740,478.63, 1,021,556.19 and 450,043.40
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Solution
The fourth proportional to 740,478.63, 1,021,556.19 and 450,043.40 is: 620,874.94
Step by Step Solution
- Step 1: Write the proportion equation
740,478.63 : 1,021,556.19 = 450,043.40 : x - Step 2: Convert to fraction form
740,478.63/1,021,556.19 = 450,043.40/x - Step 3: Cross multiply
740,478.63x = 1,021,556.19 × 450,043.40 - Step 4: Simplify right side
740,478.63x = 459,744,623,592.54 - Step 5: Solve for x
x = 459,744,623,592.54/740,478.63 - Step 6: Final answer
x = 620,874.94
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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.