Finding the Fourth Proportional to 1,095,811.05, 1,512,214.88 and 612,376.05
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Solution
The fourth proportional to 1,095,811.05, 1,512,214.88 and 612,376.05 is: 845,076.50
Step by Step Solution
- Step 1: Write the proportion equation
1,095,811.05 : 1,512,214.88 = 612,376.05 : x - Step 2: Convert to fraction form
1,095,811.05/1,512,214.88 = 612,376.05/x - Step 3: Cross multiply
1,095,811.05x = 1,512,214.88 × 612,376.05 - Step 4: Simplify right side
1,095,811.05x = 926,044,171,903.74 - Step 5: Solve for x
x = 926,044,171,903.74/1,095,811.05 - Step 6: Final answer
x = 845,076.50
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1.5x scale
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.