Finding the Fourth Proportional to 2,099,420.68, 3,149,630.70 and 679,476.76
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Solution
The fourth proportional to 2,099,420.68, 3,149,630.70 and 679,476.76 is: 1,019,376.86
Step by Step Solution
- Step 1: Write the proportion equation
2,099,420.68 : 3,149,630.70 = 679,476.76 : x - Step 2: Convert to fraction form
2,099,420.68/3,149,630.70 = 679,476.76/x - Step 3: Cross multiply
2,099,420.68x = 3,149,630.70 × 679,476.76 - Step 4: Simplify right side
2,099,420.68x = 2,140,100,863,232.53 - Step 5: Solve for x
x = 2,140,100,863,232.53/2,099,420.68 - Step 6: Final answer
x = 1,019,376.86
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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.