Finding the Fourth Proportional to 668,283.50, 1,002,270.11 and 398,486.97
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Solution
The fourth proportional to 668,283.50, 1,002,270.11 and 398,486.97 is: 597,637.95
Step by Step Solution
- Step 1: Write the proportion equation
668,283.50 : 1,002,270.11 = 398,486.97 : x - Step 2: Convert to fraction form
668,283.50/1,002,270.11 = 398,486.97/x - Step 3: Cross multiply
668,283.50x = 1,002,270.11 × 398,486.97 - Step 4: Simplify right side
668,283.50x = 399,391,577,263.03 - Step 5: Solve for x
x = 399,391,577,263.03/668,283.50 - Step 6: Final answer
x = 597,637.95
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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.