Finding the Fourth Proportional to 3,251,425.12, 4,486,965.99 and 1,781,385.85
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Solution
The fourth proportional to 3,251,425.12, 4,486,965.99 and 1,781,385.85 is: 2,458,312.10
Step by Step Solution
- Step 1: Write the proportion equation
3,251,425.12 : 4,486,965.99 = 1,781,385.85 : x - Step 2: Convert to fraction form
3,251,425.12/4,486,965.99 = 1,781,385.85/x - Step 3: Cross multiply
3,251,425.12x = 4,486,965.99 × 1,781,385.85 - Step 4: Simplify right side
3,251,425.12x = 7,993,017,724,017.24 - Step 5: Solve for x
x = 7,993,017,724,017.24/3,251,425.12 - Step 6: Final answer
x = 2,458,312.10
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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.