Finding the Fourth Proportional to 625,188.98, 862,443.68 and 395,358.95
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Solution
The fourth proportional to 625,188.98, 862,443.68 and 395,358.95 is: 545,394.81
Step by Step Solution
- Step 1: Write the proportion equation
625,188.98 : 862,443.68 = 395,358.95 : x - Step 2: Convert to fraction form
625,188.98/862,443.68 = 395,358.95/x - Step 3: Cross multiply
625,188.98x = 862,443.68 × 395,358.95 - Step 4: Simplify right side
625,188.98x = 340,974,821,469.92 - Step 5: Solve for x
x = 340,974,821,469.92/625,188.98 - Step 6: Final answer
x = 545,394.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.