Finding the Fourth Proportional to 4,139,415.12, 5,712,391.44 and 2,328,579.12
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Solution
The fourth proportional to 4,139,415.12, 5,712,391.44 and 2,328,579.12 is: 3,213,438.38
Step by Step Solution
- Step 1: Write the proportion equation
4,139,415.12 : 5,712,391.44 = 2,328,579.12 : x - Step 2: Convert to fraction form
4,139,415.12/5,712,391.44 = 2,328,579.12/x - Step 3: Cross multiply
4,139,415.12x = 5,712,391.44 × 2,328,579.12 - Step 4: Simplify right side
4,139,415.12x = 13,301,755,432,450.73 - Step 5: Solve for x
x = 13,301,755,432,450.73/4,139,415.12 - Step 6: Final answer
x = 3,213,438.38
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1.5x scale
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.