Finding the Fourth Proportional to 639,212.19, 958,569.09 and 239,634.93
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Solution
The fourth proportional to 639,212.19, 958,569.09 and 239,634.93 is: 359,358.97
Step by Step Solution
- Step 1: Write the proportion equation
639,212.19 : 958,569.09 = 239,634.93 : x - Step 2: Convert to fraction form
639,212.19/958,569.09 = 239,634.93/x - Step 3: Cross multiply
639,212.19x = 958,569.09 × 239,634.93 - Step 4: Simplify right side
639,212.19x = 229,706,636,782.31 - Step 5: Solve for x
x = 229,706,636,782.31/639,212.19 - Step 6: Final answer
x = 359,358.97
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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.