Finding the Fourth Proportional to 2,102,919, 3,160,962.90 and 1,387,855.68
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Solution
The fourth proportional to 2,102,919, 3,160,962.90 and 1,387,855.68 is: 2,086,129.00
Step by Step Solution
- Step 1: Write the proportion equation
2,102,919 : 3,160,962.90 = 1,387,855.68 : x - Step 2: Convert to fraction form
2,102,919/3,160,962.90 = 1,387,855.68/x - Step 3: Cross multiply
2,102,919x = 3,160,962.90 × 1,387,855.68 - Step 4: Simplify right side
2,102,919x = 4,386,960,315,034.27 - Step 5: Solve for x
x = 4,386,960,315,034.27/2,102,919 - Step 6: Final answer
x = 2,086,129.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.