Finding the Fourth Proportional to 3,607,985.81, 5,413,757.12 and 1,689,027.09
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Solution
The fourth proportional to 3,607,985.81, 5,413,757.12 and 1,689,027.09 is: 2,534,373.17
Step by Step Solution
- Step 1: Write the proportion equation
3,607,985.81 : 5,413,757.12 = 1,689,027.09 : x - Step 2: Convert to fraction form
3,607,985.81/5,413,757.12 = 1,689,027.09/x - Step 3: Cross multiply
3,607,985.81x = 5,413,757.12 × 1,689,027.09 - Step 4: Simplify right side
3,607,985.81x = 9,143,982,425,915.25 - Step 5: Solve for x
x = 9,143,982,425,915.25/3,607,985.81 - Step 6: Final answer
x = 2,534,373.17
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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.