Finding the Fourth Proportional to 825,401.70, 1,238,102.55 and 471,107.70
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Solution
The fourth proportional to 825,401.70, 1,238,102.55 and 471,107.70 is: 706,661.55
Step by Step Solution
- Step 1: Write the proportion equation
825,401.70 : 1,238,102.55 = 471,107.70 : x - Step 2: Convert to fraction form
825,401.70/1,238,102.55 = 471,107.70/x - Step 3: Cross multiply
825,401.70x = 1,238,102.55 × 471,107.70 - Step 4: Simplify right side
825,401.70x = 583,279,644,694.64 - Step 5: Solve for x
x = 583,279,644,694.64/825,401.70 - Step 6: Final answer
x = 706,661.55
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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.