Finding the Fourth Proportional to 2,878,060.12, 3,971,728 and 1,588,902.58
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Solution
The fourth proportional to 2,878,060.12, 3,971,728 and 1,588,902.58 is: 2,192,688.34
Step by Step Solution
- Step 1: Write the proportion equation
2,878,060.12 : 3,971,728 = 1,588,902.58 : x - Step 2: Convert to fraction form
2,878,060.12/3,971,728 = 1,588,902.58/x - Step 3: Cross multiply
2,878,060.12x = 3,971,728 × 1,588,902.58 - Step 4: Simplify right side
2,878,060.12x = 6,310,688,866,258.24 - Step 5: Solve for x
x = 6,310,688,866,258.24/2,878,060.12 - Step 6: Final answer
x = 2,192,688.34
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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.