Finding the Fourth Proportional to 2,129,337.60, 3,194,913.60 and 1,119,235.20
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Solution
The fourth proportional to 2,129,337.60, 3,194,913.60 and 1,119,235.20 is: 1,679,329.65
Step by Step Solution
- Step 1: Write the proportion equation
2,129,337.60 : 3,194,913.60 = 1,119,235.20 : x - Step 2: Convert to fraction form
2,129,337.60/3,194,913.60 = 1,119,235.20/x - Step 3: Cross multiply
2,129,337.60x = 3,194,913.60 × 1,119,235.20 - Step 4: Simplify right side
2,129,337.60x = 3,575,859,762,078.72 - Step 5: Solve for x
x = 3,575,859,762,078.72/2,129,337.60 - Step 6: Final answer
x = 1,679,329.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.