Finding the Fourth Proportional to 2,138,088.66, 2,950,563.14 and 1,171,253.80
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Solution
The fourth proportional to 2,138,088.66, 2,950,563.14 and 1,171,253.80 is: 1,616,330.68
Step by Step Solution
- Step 1: Write the proportion equation
2,138,088.66 : 2,950,563.14 = 1,171,253.80 : x - Step 2: Convert to fraction form
2,138,088.66/2,950,563.14 = 1,171,253.80/x - Step 3: Cross multiply
2,138,088.66x = 2,950,563.14 × 1,171,253.80 - Step 4: Simplify right side
2,138,088.66x = 3,455,858,289,864.93 - Step 5: Solve for x
x = 3,455,858,289,864.93/2,138,088.66 - Step 6: Final answer
x = 1,616,330.68
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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.