Finding the Fourth Proportional to 639,708.80, 959,125.80 and 302,910.80
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Solution
The fourth proportional to 639,708.80, 959,125.80 and 302,910.80 is: 454,159.09
Step by Step Solution
- Step 1: Write the proportion equation
639,708.80 : 959,125.80 = 302,910.80 : x - Step 2: Convert to fraction form
639,708.80/959,125.80 = 302,910.80/x - Step 3: Cross multiply
639,708.80x = 959,125.80 × 302,910.80 - Step 4: Simplify right side
639,708.80x = 290,529,563,378.64 - Step 5: Solve for x
x = 290,529,563,378.64/639,708.80 - Step 6: Final answer
x = 454,159.09
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1.5x scale
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.