Finding the Fourth Proportional to 824,873.64, 1,138,339.08 and 462,378.12
Calculator
Solution
The fourth proportional to 824,873.64, 1,138,339.08 and 462,378.12 is: 638,089.35
Step by Step Solution
- Step 1: Write the proportion equation
824,873.64 : 1,138,339.08 = 462,378.12 : x - Step 2: Convert to fraction form
824,873.64/1,138,339.08 = 462,378.12/x - Step 3: Cross multiply
824,873.64x = 1,138,339.08 × 462,378.12 - Step 4: Simplify right side
824,873.64x = 526,343,083,732.93 - Step 5: Solve for x
x = 526,343,083,732.93/824,873.64 - Step 6: Final answer
x = 638,089.35
Related Problems
Find fourth proportional to 412,436.82, 569,169.54 and 231,189.06
Half scale
Find fourth proportional to 1,649,747.28, 2,276,678.16 and 924,756.24
Double scale
Find fourth proportional to 824,874.64, 1,138,340.46 and 462,379.12
Similar ratio
Find fourth proportional to 1,237,310.46, 1,707,508.62 and 693,567.18
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.