Finding the Fourth Proportional to 1,280,588.08, 1,921,214.24 and 681,056.24
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Solution
The fourth proportional to 1,280,588.08, 1,921,214.24 and 681,056.24 is: 1,021,760.99
Step by Step Solution
- Step 1: Write the proportion equation
1,280,588.08 : 1,921,214.24 = 681,056.24 : x - Step 2: Convert to fraction form
1,280,588.08/1,921,214.24 = 681,056.24/x - Step 3: Cross multiply
1,280,588.08x = 1,921,214.24 × 681,056.24 - Step 4: Simplify right side
1,280,588.08x = 1,308,454,946,528.86 - Step 5: Solve for x
x = 1,308,454,946,528.86/1,280,588.08 - Step 6: Final answer
x = 1,021,760.99
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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.