Finding the Fourth Proportional to 763,703.10, 1,145,557.80 and 258,266.70
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Solution
The fourth proportional to 763,703.10, 1,145,557.80 and 258,266.70 is: 387,401.12
Step by Step Solution
- Step 1: Write the proportion equation
763,703.10 : 1,145,557.80 = 258,266.70 : x - Step 2: Convert to fraction form
763,703.10/1,145,557.80 = 258,266.70/x - Step 3: Cross multiply
763,703.10x = 1,145,557.80 × 258,266.70 - Step 4: Simplify right side
763,703.10x = 295,859,432,665.26 - Step 5: Solve for x
x = 295,859,432,665.26/763,703.10 - Step 6: Final answer
x = 387,401.12
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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.