Finding the Fourth Proportional to 1,248,754.80, 1,873,132.20 and 1,115,785.20
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Solution
The fourth proportional to 1,248,754.80, 1,873,132.20 and 1,115,785.20 is: 1,673,677.80
Step by Step Solution
- Step 1: Write the proportion equation
1,248,754.80 : 1,873,132.20 = 1,115,785.20 : x - Step 2: Convert to fraction form
1,248,754.80/1,873,132.20 = 1,115,785.20/x - Step 3: Cross multiply
1,248,754.80x = 1,873,132.20 × 1,115,785.20 - Step 4: Simplify right side
1,248,754.80x = 2,090,013,186,403.44 - Step 5: Solve for x
x = 2,090,013,186,403.44/1,248,754.80 - Step 6: Final answer
x = 1,673,677.80
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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.