Finding the Fourth Proportional to 529,587.56, 730,128.66 and 438,608.36
Calculator
Solution
The fourth proportional to 529,587.56, 730,128.66 and 438,608.36 is: 604,697.99
Step by Step Solution
- Step 1: Write the proportion equation
529,587.56 : 730,128.66 = 438,608.36 : x - Step 2: Convert to fraction form
529,587.56/730,128.66 = 438,608.36/x - Step 3: Cross multiply
529,587.56x = 730,128.66 × 438,608.36 - Step 4: Simplify right side
529,587.56x = 320,240,534,151.60 - Step 5: Solve for x
x = 320,240,534,151.60/529,587.56 - Step 6: Final answer
x = 604,697.99
Related Problems
Find fourth proportional to 264,793.78, 365,064.33 and 219,304.18
Half scale
Find fourth proportional to 1,059,175.12, 1,460,257.32 and 877,216.72
Double scale
Find fourth proportional to 529,588.56, 730,130.04 and 438,609.36
Similar ratio
Find fourth proportional to 794,381.34, 1,095,192.99 and 657,912.54
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.