Finding the Fourth Proportional to 1,186,992.16, 1,779,244.08 and 438,560.80
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Solution
The fourth proportional to 1,186,992.16, 1,779,244.08 and 438,560.80 is: 657,381.52
Step by Step Solution
- Step 1: Write the proportion equation
1,186,992.16 : 1,779,244.08 = 438,560.80 : x - Step 2: Convert to fraction form
1,186,992.16/1,779,244.08 = 438,560.80/x - Step 3: Cross multiply
1,186,992.16x = 1,779,244.08 × 438,560.80 - Step 4: Simplify right side
1,186,992.16x = 780,306,707,120.06 - Step 5: Solve for x
x = 780,306,707,120.06/1,186,992.16 - Step 6: Final answer
x = 657,381.52
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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.