Finding the Fourth Proportional to 4,678,781.40, 7,018,841.58 and 1,440,593.10
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Solution
The fourth proportional to 4,678,781.40, 7,018,841.58 and 1,440,593.10 is: 2,161,095.78
Step by Step Solution
- Step 1: Write the proportion equation
4,678,781.40 : 7,018,841.58 = 1,440,593.10 : x - Step 2: Convert to fraction form
4,678,781.40/7,018,841.58 = 1,440,593.10/x - Step 3: Cross multiply
4,678,781.40x = 7,018,841.58 × 1,440,593.10 - Step 4: Simplify right side
4,678,781.40x = 10,111,294,750,141.10 - Step 5: Solve for x
x = 10,111,294,750,141.10/4,678,781.40 - Step 6: Final answer
x = 2,161,095.78
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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.