Finding the Fourth Proportional to 502,998.84, 694,080.18 and 288,126.09
Calculator
Solution
The fourth proportional to 502,998.84, 694,080.18 and 288,126.09 is: 397,580.66
Step by Step Solution
- Step 1: Write the proportion equation
502,998.84 : 694,080.18 = 288,126.09 : x - Step 2: Convert to fraction form
502,998.84/694,080.18 = 288,126.09/x - Step 3: Cross multiply
502,998.84x = 694,080.18 × 288,126.09 - Step 4: Simplify right side
502,998.84x = 199,982,608,409.90 - Step 5: Solve for x
x = 199,982,608,409.90/502,998.84 - Step 6: Final answer
x = 397,580.66
Related Problems
Find fourth proportional to 251,499.42, 347,040.09 and 144,063.05
Half scale
Find fourth proportional to 1,005,997.68, 1,388,160.36 and 576,252.18
Double scale
Find fourth proportional to 502,999.84, 694,081.56 and 288,127.09
Similar ratio
Find fourth proportional to 754,498.26, 1,041,120.27 and 432,189.14
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.