Finding the Fourth Proportional to 668,865.30, 1,001,937.15 and 415,367.70
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Solution
The fourth proportional to 668,865.30, 1,001,937.15 and 415,367.70 is: 622,206.49
Step by Step Solution
- Step 1: Write the proportion equation
668,865.30 : 1,001,937.15 = 415,367.70 : x - Step 2: Convert to fraction form
668,865.30/1,001,937.15 = 415,367.70/x - Step 3: Cross multiply
668,865.30x = 1,001,937.15 × 415,367.70 - Step 4: Simplify right side
668,865.30x = 416,172,329,540.06 - Step 5: Solve for x
x = 416,172,329,540.06/668,865.30 - Step 6: Final answer
x = 622,206.49
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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.