Finding the Fourth Proportional to 4,280,099.40, 6,416,129.88 and 1,438,224.12
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Solution
The fourth proportional to 4,280,099.40, 6,416,129.88 and 1,438,224.12 is: 2,155,985.62
Step by Step Solution
- Step 1: Write the proportion equation
4,280,099.40 : 6,416,129.88 = 1,438,224.12 : x - Step 2: Convert to fraction form
4,280,099.40/6,416,129.88 = 1,438,224.12/x - Step 3: Cross multiply
4,280,099.40x = 6,416,129.88 × 1,438,224.12 - Step 4: Simplify right side
4,280,099.40x = 9,227,832,750,468.71 - Step 5: Solve for x
x = 9,227,832,750,468.71/4,280,099.40 - Step 6: Final answer
x = 2,155,985.62
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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.