Finding the Fourth Proportional to 1,391,435.19, 2,087,414.99 and 527,129.01
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Solution
The fourth proportional to 1,391,435.19, 2,087,414.99 and 527,129.01 is: 790,792.85
Step by Step Solution
- Step 1: Write the proportion equation
1,391,435.19 : 2,087,414.99 = 527,129.01 : x - Step 2: Convert to fraction form
1,391,435.19/2,087,414.99 = 527,129.01/x - Step 3: Cross multiply
1,391,435.19x = 2,087,414.99 × 527,129.01 - Step 4: Simplify right side
1,391,435.19x = 1,100,336,997,137.86 - Step 5: Solve for x
x = 1,100,336,997,137.86/1,391,435.19 - Step 6: Final answer
x = 790,792.85
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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.