Finding the Fourth Proportional to 2,853,911.86, 4,280,412.09 and 831,682.74
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Solution
The fourth proportional to 2,853,911.86, 4,280,412.09 and 831,682.74 is: 1,247,391.32
Step by Step Solution
- Step 1: Write the proportion equation
2,853,911.86 : 4,280,412.09 = 831,682.74 : x - Step 2: Convert to fraction form
2,853,911.86/4,280,412.09 = 831,682.74/x - Step 3: Cross multiply
2,853,911.86x = 4,280,412.09 × 831,682.74 - Step 4: Simplify right side
2,853,911.86x = 3,559,944,864,731.08 - Step 5: Solve for x
x = 3,559,944,864,731.08/2,853,911.86 - Step 6: Final answer
x = 1,247,391.32
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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.