Finding the Fourth Proportional to 1,391,146.49, 2,086,860.67 and 480,210.23
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Solution
The fourth proportional to 1,391,146.49, 2,086,860.67 and 480,210.23 is: 720,363.99
Step by Step Solution
- Step 1: Write the proportion equation
1,391,146.49 : 2,086,860.67 = 480,210.23 : x - Step 2: Convert to fraction form
1,391,146.49/2,086,860.67 = 480,210.23/x - Step 3: Cross multiply
1,391,146.49x = 2,086,860.67 × 480,210.23 - Step 4: Simplify right side
1,391,146.49x = 1,002,131,838,302.03 - Step 5: Solve for x
x = 1,002,131,838,302.03/1,391,146.49 - Step 6: Final answer
x = 720,363.99
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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.