Finding the Fourth Proportional to 639,209.19, 958,564.60 and 239,631.94
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Solution
The fourth proportional to 639,209.19, 958,564.60 and 239,631.94 is: 359,354.49
Step by Step Solution
- Step 1: Write the proportion equation
639,209.19 : 958,564.60 = 239,631.94 : x - Step 2: Convert to fraction form
639,209.19/958,564.60 = 239,631.94/x - Step 3: Cross multiply
639,209.19x = 958,564.60 × 239,631.94 - Step 4: Simplify right side
639,209.19x = 229,702,694,713.32 - Step 5: Solve for x
x = 229,702,694,713.32/639,209.19 - Step 6: Final answer
x = 359,354.49
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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.