Finding the Fourth Proportional to 3,478,117.30, 5,217,175.95 and 2,638,309.30
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Solution
The fourth proportional to 3,478,117.30, 5,217,175.95 and 2,638,309.30 is: 3,957,463.95
Step by Step Solution
- Step 1: Write the proportion equation
3,478,117.30 : 5,217,175.95 = 2,638,309.30 : x - Step 2: Convert to fraction form
3,478,117.30/5,217,175.95 = 2,638,309.30/x - Step 3: Cross multiply
3,478,117.30x = 5,217,175.95 × 2,638,309.30 - Step 4: Simplify right side
3,478,117.30x = 13,764,523,828,621.33 - Step 5: Solve for x
x = 13,764,523,828,621.33/3,478,117.30 - Step 6: Final answer
x = 3,957,463.95
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Similar ratio
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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.