Finding the Fourth Proportional to 3,469,987.02, 4,788,731.68 and 1,921,248.62
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Solution
The fourth proportional to 3,469,987.02, 4,788,731.68 and 1,921,248.62 is: 2,651,405.92
Step by Step Solution
- Step 1: Write the proportion equation
3,469,987.02 : 4,788,731.68 = 1,921,248.62 : x - Step 2: Convert to fraction form
3,469,987.02/4,788,731.68 = 1,921,248.62/x - Step 3: Cross multiply
3,469,987.02x = 4,788,731.68 × 1,921,248.62 - Step 4: Simplify right side
3,469,987.02x = 9,200,344,119,993.61 - Step 5: Solve for x
x = 9,200,344,119,993.61/3,469,987.02 - Step 6: Final answer
x = 2,651,405.92
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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.