Finding the Fourth Proportional to 2,108,620.24, 2,910,420.80 and 1,203,727.12
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Solution
The fourth proportional to 2,108,620.24, 2,910,420.80 and 1,203,727.12 is: 1,661,443.05
Step by Step Solution
- Step 1: Write the proportion equation
2,108,620.24 : 2,910,420.80 = 1,203,727.12 : x - Step 2: Convert to fraction form
2,108,620.24/2,910,420.80 = 1,203,727.12/x - Step 3: Cross multiply
2,108,620.24x = 2,910,420.80 × 1,203,727.12 - Step 4: Simplify right side
2,108,620.24x = 3,503,352,447,572.10 - Step 5: Solve for x
x = 3,503,352,447,572.10/2,108,620.24 - Step 6: Final answer
x = 1,661,443.05
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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.