Finding the Fourth Proportional to 376,690.08, 519,440.40 and 281,045.28
Calculator
Solution
The fourth proportional to 376,690.08, 519,440.40 and 281,045.28 is: 387,550.09
Step by Step Solution
- Step 1: Write the proportion equation
376,690.08 : 519,440.40 = 281,045.28 : x - Step 2: Convert to fraction form
376,690.08/519,440.40 = 281,045.28/x - Step 3: Cross multiply
376,690.08x = 519,440.40 × 281,045.28 - Step 4: Simplify right side
376,690.08x = 145,986,272,661.31 - Step 5: Solve for x
x = 145,986,272,661.31/376,690.08 - Step 6: Final answer
x = 387,550.09
Related Problems
Find fourth proportional to 188,345.04, 259,720.20 and 140,522.64
Half scale
Find fourth proportional to 753,380.16, 1,038,880.80 and 562,090.56
Double scale
Find fourth proportional to 376,691.08, 519,441.78 and 281,046.28
Similar ratio
Find fourth proportional to 565,035.12, 779,160.60 and 421,567.92
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.