Finding the Fourth Proportional to 804,514.80, 1,109,912.99 and 518,201.07
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Solution
The fourth proportional to 804,514.80, 1,109,912.99 and 518,201.07 is: 714,913.01
Step by Step Solution
- Step 1: Write the proportion equation
804,514.80 : 1,109,912.99 = 518,201.07 : x - Step 2: Convert to fraction form
804,514.80/1,109,912.99 = 518,201.07/x - Step 3: Cross multiply
804,514.80x = 1,109,912.99 × 518,201.07 - Step 4: Simplify right side
804,514.80x = 575,158,099,024.90 - Step 5: Solve for x
x = 575,158,099,024.90/804,514.80 - Step 6: Final answer
x = 714,913.01
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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.