Finding the Fourth Proportional to 682,432.84, 1,021,549.74 and 445,264.84
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Solution
The fourth proportional to 682,432.84, 1,021,549.74 and 445,264.84 is: 666,527.39
Step by Step Solution
- Step 1: Write the proportion equation
682,432.84 : 1,021,549.74 = 445,264.84 : x - Step 2: Convert to fraction form
682,432.84/1,021,549.74 = 445,264.84/x - Step 3: Cross multiply
682,432.84x = 1,021,549.74 × 445,264.84 - Step 4: Simplify right side
682,432.84x = 454,860,181,533.14 - Step 5: Solve for x
x = 454,860,181,533.14/682,432.84 - Step 6: Final answer
x = 666,527.39
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1.5x scale
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.