Finding the Fourth Proportional to 3,125,461.05, 4,688,191.58 and 761,557.05
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Solution
The fourth proportional to 3,125,461.05, 4,688,191.58 and 761,557.05 is: 1,142,335.58
Step by Step Solution
- Step 1: Write the proportion equation
3,125,461.05 : 4,688,191.58 = 761,557.05 : x - Step 2: Convert to fraction form
3,125,461.05/4,688,191.58 = 761,557.05/x - Step 3: Cross multiply
3,125,461.05x = 4,688,191.58 × 761,557.05 - Step 4: Simplify right side
3,125,461.05x = 3,570,325,345,691.85 - Step 5: Solve for x
x = 3,570,325,345,691.85/3,125,461.05 - Step 6: Final answer
x = 1,142,335.58
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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.