Finding the Fourth Proportional to 1,877,841.21, 2,817,323.16 and 1,331,785.59
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Solution
The fourth proportional to 1,877,841.21, 2,817,323.16 and 1,331,785.59 is: 1,998,076.50
Step by Step Solution
- Step 1: Write the proportion equation
1,877,841.21 : 2,817,323.16 = 1,331,785.59 : x - Step 2: Convert to fraction form
1,877,841.21/2,817,323.16 = 1,331,785.59/x - Step 3: Cross multiply
1,877,841.21x = 2,817,323.16 × 1,331,785.59 - Step 4: Simplify right side
1,877,841.21x = 3,752,070,386,861.26 - Step 5: Solve for x
x = 3,752,070,386,861.26/1,877,841.21 - Step 6: Final answer
x = 1,998,076.50
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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.