Finding the Fourth Proportional to 2,487,245.09, 3,730,867.63 and 690,128.87
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Solution
The fourth proportional to 2,487,245.09, 3,730,867.63 and 690,128.87 is: 1,035,193.30
Step by Step Solution
- Step 1: Write the proportion equation
2,487,245.09 : 3,730,867.63 = 690,128.87 : x - Step 2: Convert to fraction form
2,487,245.09/3,730,867.63 = 690,128.87/x - Step 3: Cross multiply
2,487,245.09x = 3,730,867.63 × 690,128.87 - Step 4: Simplify right side
2,487,245.09x = 2,574,779,441,231.82 - Step 5: Solve for x
x = 2,574,779,441,231.82/2,487,245.09 - Step 6: Final answer
x = 1,035,193.30
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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.