Finding the Fourth Proportional to 489,127.41, 674,709.21 and 307,551.60
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Solution
The fourth proportional to 489,127.41, 674,709.21 and 307,551.60 is: 424,240.99
Step by Step Solution
- Step 1: Write the proportion equation
489,127.41 : 674,709.21 = 307,551.60 : x - Step 2: Convert to fraction form
489,127.41/674,709.21 = 307,551.60/x - Step 3: Cross multiply
489,127.41x = 674,709.21 × 307,551.60 - Step 4: Simplify right side
489,127.41x = 207,507,897,070.24 - Step 5: Solve for x
x = 207,507,897,070.24/489,127.41 - Step 6: Final answer
x = 424,240.99
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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.