Finding the Fourth Proportional to 2,390,407.20, 3,298,762.64 and 1,302,679.20
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Solution
The fourth proportional to 2,390,407.20, 3,298,762.64 and 1,302,679.20 is: 1,797,697.68
Step by Step Solution
- Step 1: Write the proportion equation
2,390,407.20 : 3,298,762.64 = 1,302,679.20 : x - Step 2: Convert to fraction form
2,390,407.20/3,298,762.64 = 1,302,679.20/x - Step 3: Cross multiply
2,390,407.20x = 3,298,762.64 × 1,302,679.20 - Step 4: Simplify right side
2,390,407.20x = 4,297,229,476,865.09 - Step 5: Solve for x
x = 4,297,229,476,865.09/2,390,407.20 - Step 6: Final answer
x = 1,797,697.68
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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.