Finding the Fourth Proportional to 3,186,417.15, 4,779,621.36 and 1,479,627.15
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Solution
The fourth proportional to 3,186,417.15, 4,779,621.36 and 1,479,627.15 is: 2,219,438.70
Step by Step Solution
- Step 1: Write the proportion equation
3,186,417.15 : 4,779,621.36 = 1,479,627.15 : x - Step 2: Convert to fraction form
3,186,417.15/4,779,621.36 = 1,479,627.15/x - Step 3: Cross multiply
3,186,417.15x = 4,779,621.36 × 1,479,627.15 - Step 4: Simplify right side
3,186,417.15x = 7,072,057,530,975.92 - Step 5: Solve for x
x = 7,072,057,530,975.92/3,186,417.15 - Step 6: Final answer
x = 2,219,438.70
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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.