Finding the Fourth Proportional to 3,423,272.80, 5,138,595.60 and 1,930,280.80
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Solution
The fourth proportional to 3,423,272.80, 5,138,595.60 and 1,930,280.80 is: 2,897,499.85
Step by Step Solution
- Step 1: Write the proportion equation
3,423,272.80 : 5,138,595.60 = 1,930,280.80 : x - Step 2: Convert to fraction form
3,423,272.80/5,138,595.60 = 1,930,280.80/x - Step 3: Cross multiply
3,423,272.80x = 5,138,595.60 × 1,930,280.80 - Step 4: Simplify right side
3,423,272.80x = 9,918,932,425,644.48 - Step 5: Solve for x
x = 9,918,932,425,644.48/3,423,272.80 - Step 6: Final answer
x = 2,897,499.85
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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.