Finding the Fourth Proportional to 1,289,742.91, 1,934,612.07 and 343,113.62
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Solution
The fourth proportional to 1,289,742.91, 1,934,612.07 and 343,113.62 is: 514,669.82
Step by Step Solution
- Step 1: Write the proportion equation
1,289,742.91 : 1,934,612.07 = 343,113.62 : x - Step 2: Convert to fraction form
1,289,742.91/1,934,612.07 = 343,113.62/x - Step 3: Cross multiply
1,289,742.91x = 1,934,612.07 × 343,113.62 - Step 4: Simplify right side
1,289,742.91x = 663,791,750,633.39 - Step 5: Solve for x
x = 663,791,750,633.39/1,289,742.91 - Step 6: Final answer
x = 514,669.82
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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.