Finding the Fourth Proportional to 1,009,738.12, 1,393,416.18 and 557,029
Calculator
Solution
The fourth proportional to 1,009,738.12, 1,393,416.18 and 557,029 is: 768,687.65
Step by Step Solution
- Step 1: Write the proportion equation
1,009,738.12 : 1,393,416.18 = 557,029 : x - Step 2: Convert to fraction form
1,009,738.12/1,393,416.18 = 557,029/x - Step 3: Cross multiply
1,009,738.12x = 1,393,416.18 × 557,029 - Step 4: Simplify right side
1,009,738.12x = 776,173,221,329.22 - Step 5: Solve for x
x = 776,173,221,329.22/1,009,738.12 - Step 6: Final answer
x = 768,687.65
Related Problems
Find fourth proportional to 504,869.06, 696,708.09 and 278,514.50
Half scale
Find fourth proportional to 2,019,476.24, 2,786,832.36 and 1,114,058
Double scale
Find fourth proportional to 1,009,739.12, 1,393,417.56 and 557,030
Similar ratio
Find fourth proportional to 1,514,607.18, 2,090,124.27 and 835,543.50
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.