Finding the Fourth Proportional to 2,006,657.20, 2,768,028.80 and 1,280,686.65
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Solution
The fourth proportional to 2,006,657.20, 2,768,028.80 and 1,280,686.65 is: 1,766,608.43
Step by Step Solution
- Step 1: Write the proportion equation
2,006,657.20 : 2,768,028.80 = 1,280,686.65 : x - Step 2: Convert to fraction form
2,006,657.20/2,768,028.80 = 1,280,686.65/x - Step 3: Cross multiply
2,006,657.20x = 2,768,028.80 × 1,280,686.65 - Step 4: Simplify right side
2,006,657.20x = 3,544,977,514,191.98 - Step 5: Solve for x
x = 3,544,977,514,191.98/2,006,657.20 - Step 6: Final answer
x = 1,766,608.43
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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.