Finding the Fourth Proportional to 1,091,461.05, 1,637,191.58 and 381,415.05
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Solution
The fourth proportional to 1,091,461.05, 1,637,191.58 and 381,415.05 is: 572,122.58
Step by Step Solution
- Step 1: Write the proportion equation
1,091,461.05 : 1,637,191.58 = 381,415.05 : x - Step 2: Convert to fraction form
1,091,461.05/1,637,191.58 = 381,415.05/x - Step 3: Cross multiply
1,091,461.05x = 1,637,191.58 × 381,415.05 - Step 4: Simplify right side
1,091,461.05x = 624,449,506,438.20 - Step 5: Solve for x
x = 624,449,506,438.20/1,091,461.05 - Step 6: Final answer
x = 572,122.58
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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.