Finding the Fourth Proportional to 2,187,354.20, 3,281,031.30 and 1,226,823.80
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Solution
The fourth proportional to 2,187,354.20, 3,281,031.30 and 1,226,823.80 is: 1,840,235.70
Step by Step Solution
- Step 1: Write the proportion equation
2,187,354.20 : 3,281,031.30 = 1,226,823.80 : x - Step 2: Convert to fraction form
2,187,354.20/3,281,031.30 = 1,226,823.80/x - Step 3: Cross multiply
2,187,354.20x = 3,281,031.30 × 1,226,823.80 - Step 4: Simplify right side
2,187,354.20x = 4,025,247,287,384.94 - Step 5: Solve for x
x = 4,025,247,287,384.94/2,187,354.20 - Step 6: Final answer
x = 1,840,235.70
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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.