Finding the Fourth Proportional to 2,590,178.80, 3,885,268.20 and 2,391,113.20
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Solution
The fourth proportional to 2,590,178.80, 3,885,268.20 and 2,391,113.20 is: 3,586,669.80
Step by Step Solution
- Step 1: Write the proportion equation
2,590,178.80 : 3,885,268.20 = 2,391,113.20 : x - Step 2: Convert to fraction form
2,590,178.80/3,885,268.20 = 2,391,113.20/x - Step 3: Cross multiply
2,590,178.80x = 3,885,268.20 × 2,391,113.20 - Step 4: Simplify right side
2,590,178.80x = 9,290,116,078,560.24 - Step 5: Solve for x
x = 9,290,116,078,560.24/2,590,178.80 - Step 6: Final answer
x = 3,586,669.80
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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.