Finding the Fourth Proportional to 479,278.74, 661,400.10 and 264,420.54
Calculator
Solution
The fourth proportional to 479,278.74, 661,400.10 and 264,420.54 is: 364,897.83
Step by Step Solution
- Step 1: Write the proportion equation
479,278.74 : 661,400.10 = 264,420.54 : x - Step 2: Convert to fraction form
479,278.74/661,400.10 = 264,420.54/x - Step 3: Cross multiply
479,278.74x = 661,400.10 × 264,420.54 - Step 4: Simplify right side
479,278.74x = 174,887,771,598.05 - Step 5: Solve for x
x = 174,887,771,598.05/479,278.74 - Step 6: Final answer
x = 364,897.83
Related Problems
Find fourth proportional to 239,639.37, 330,700.05 and 132,210.27
Half scale
Find fourth proportional to 958,557.48, 1,322,800.20 and 528,841.08
Double scale
Find fourth proportional to 479,279.74, 661,401.48 and 264,421.54
Similar ratio
Find fourth proportional to 718,918.11, 992,100.15 and 396,630.81
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.