Finding the Fourth Proportional to 506,289.42, 698,654.84 and 288,549.07
Calculator
Solution
The fourth proportional to 506,289.42, 698,654.84 and 288,549.07 is: 398,183.71
Step by Step Solution
- Step 1: Write the proportion equation
506,289.42 : 698,654.84 = 288,549.07 : x - Step 2: Convert to fraction form
506,289.42/698,654.84 = 288,549.07/x - Step 3: Cross multiply
506,289.42x = 698,654.84 × 288,549.07 - Step 4: Simplify right side
506,289.42x = 201,596,201,143.62 - Step 5: Solve for x
x = 201,596,201,143.62/506,289.42 - Step 6: Final answer
x = 398,183.71
Related Problems
Find fourth proportional to 253,144.71, 349,327.42 and 144,274.53
Half scale
Find fourth proportional to 1,012,578.84, 1,397,309.67 and 577,098.14
Double scale
Find fourth proportional to 506,290.42, 698,656.21 and 288,550.07
Similar ratio
Find fourth proportional to 759,434.13, 1,047,982.25 and 432,823.60
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.