Finding the Fourth Proportional to 1,558,839.25, 2,149,252.50 and 1,191,771.28
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Solution
The fourth proportional to 1,558,839.25, 2,149,252.50 and 1,191,771.28 is: 1,643,156.85
Step by Step Solution
- Step 1: Write the proportion equation
1,558,839.25 : 2,149,252.50 = 1,191,771.28 : x - Step 2: Convert to fraction form
1,558,839.25/2,149,252.50 = 1,191,771.28/x - Step 3: Cross multiply
1,558,839.25x = 2,149,252.50 × 1,191,771.28 - Step 4: Simplify right side
1,558,839.25x = 2,561,417,391,330.65 - Step 5: Solve for x
x = 2,561,417,391,330.65/1,558,839.25 - Step 6: Final answer
x = 1,643,156.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.