Finding the Fourth Proportional to 747,491.44, 1,031,179.44 and 489,254.80
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Solution
The fourth proportional to 747,491.44, 1,031,179.44 and 489,254.80 is: 674,936.81
Step by Step Solution
- Step 1: Write the proportion equation
747,491.44 : 1,031,179.44 = 489,254.80 : x - Step 2: Convert to fraction form
747,491.44/1,031,179.44 = 489,254.80/x - Step 3: Cross multiply
747,491.44x = 1,031,179.44 × 489,254.80 - Step 4: Simplify right side
747,491.44x = 504,509,490,681.31 - Step 5: Solve for x
x = 504,509,490,681.31/747,491.44 - Step 6: Final answer
x = 674,936.81
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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.