Finding the Fourth Proportional to 687,565.59, 1,033,029.74 and 649,326.70
Calculator
Solution
The fourth proportional to 687,565.59, 1,033,029.74 and 649,326.70 is: 975,577.90
Step by Step Solution
- Step 1: Write the proportion equation
687,565.59 : 1,033,029.74 = 649,326.70 : x - Step 2: Convert to fraction form
687,565.59/1,033,029.74 = 649,326.70/x - Step 3: Cross multiply
687,565.59x = 1,033,029.74 × 649,326.70 - Step 4: Simplify right side
687,565.59x = 670,773,792,076.06 - Step 5: Solve for x
x = 670,773,792,076.06/687,565.59 - Step 6: Final answer
x = 975,577.90
Related Problems
Find fourth proportional to 343,782.80, 516,514.87 and 324,663.35
Half scale
Find fourth proportional to 1,375,131.18, 2,066,059.48 and 1,298,653.40
Double scale
Find fourth proportional to 687,566.59, 1,033,031.24 and 649,327.70
Similar ratio
Find fourth proportional to 1,031,348.39, 1,549,544.61 and 973,990.05
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.