Finding the Fourth Proportional to 3,871,671.68, 5,808,689.04 and 1,979,742.08
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Solution
The fourth proportional to 3,871,671.68, 5,808,689.04 and 1,979,742.08 is: 2,970,217.28
Step by Step Solution
- Step 1: Write the proportion equation
3,871,671.68 : 5,808,689.04 = 1,979,742.08 : x - Step 2: Convert to fraction form
3,871,671.68/5,808,689.04 = 1,979,742.08/x - Step 3: Cross multiply
3,871,671.68x = 5,808,689.04 × 1,979,742.08 - Step 4: Simplify right side
3,871,671.68x = 11,499,706,122,122.80 - Step 5: Solve for x
x = 11,499,706,122,122.80/3,871,671.68 - Step 6: Final answer
x = 2,970,217.28
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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.