Finding the Fourth Proportional to 671,340.70, 1,010,685.94 and 612,554.14
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Solution
The fourth proportional to 671,340.70, 1,010,685.94 and 612,554.14 is: 922,184.30
Step by Step Solution
- Step 1: Write the proportion equation
671,340.70 : 1,010,685.94 = 612,554.14 : x - Step 2: Convert to fraction form
671,340.70/1,010,685.94 = 612,554.14/x - Step 3: Cross multiply
671,340.70x = 1,010,685.94 × 612,554.14 - Step 4: Simplify right side
671,340.70x = 619,099,856,786.79 - Step 5: Solve for x
x = 619,099,856,786.79/671,340.70 - Step 6: Final answer
x = 922,184.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.