Finding the Fourth Proportional to 2,172,134.74, 2,997,566.61 and 1,205,354.99
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Solution
The fourth proportional to 2,172,134.74, 2,997,566.61 and 1,205,354.99 is: 1,663,401.36
Step by Step Solution
- Step 1: Write the proportion equation
2,172,134.74 : 2,997,566.61 = 1,205,354.99 : x - Step 2: Convert to fraction form
2,172,134.74/2,997,566.61 = 1,205,354.99/x - Step 3: Cross multiply
2,172,134.74x = 2,997,566.61 × 1,205,354.99 - Step 4: Simplify right side
2,172,134.74x = 3,613,131,871,220.88 - Step 5: Solve for x
x = 3,613,131,871,220.88/2,172,134.74 - Step 6: Final answer
x = 1,663,401.36
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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.