Finding the Fourth Proportional to 639,276.84, 958,665.90 and 239,699.88
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Solution
The fourth proportional to 639,276.84, 958,665.90 and 239,699.88 is: 359,456.32
Step by Step Solution
- Step 1: Write the proportion equation
639,276.84 : 958,665.90 = 239,699.88 : x - Step 2: Convert to fraction form
639,276.84/958,665.90 = 239,699.88/x - Step 3: Cross multiply
639,276.84x = 958,665.90 × 239,699.88 - Step 4: Simplify right side
639,276.84x = 229,792,101,190.09 - Step 5: Solve for x
x = 229,792,101,190.09/639,276.84 - Step 6: Final answer
x = 359,456.32
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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.