Finding the Fourth Proportional to 1,311,873.99, 1,810,396.22 and 738,860.55
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Solution
The fourth proportional to 1,311,873.99, 1,810,396.22 and 738,860.55 is: 1,019,633.25
Step by Step Solution
- Step 1: Write the proportion equation
1,311,873.99 : 1,810,396.22 = 738,860.55 : x - Step 2: Convert to fraction form
1,311,873.99/1,810,396.22 = 738,860.55/x - Step 3: Cross multiply
1,311,873.99x = 1,810,396.22 × 738,860.55 - Step 4: Simplify right side
1,311,873.99x = 1,337,630,343,132.82 - Step 5: Solve for x
x = 1,337,630,343,132.82/1,311,873.99 - Step 6: Final answer
x = 1,019,633.25
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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.