Finding the Fourth Proportional to 677,630.35, 935,159.21 and 405,645.63
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Solution
The fourth proportional to 677,630.35, 935,159.21 and 405,645.63 is: 559,808.53
Step by Step Solution
- Step 1: Write the proportion equation
677,630.35 : 935,159.21 = 405,645.63 : x - Step 2: Convert to fraction form
677,630.35/935,159.21 = 405,645.63/x - Step 3: Cross multiply
677,630.35x = 935,159.21 × 405,645.63 - Step 4: Simplify right side
677,630.35x = 379,343,246,890.75 - Step 5: Solve for x
x = 379,343,246,890.75/677,630.35 - Step 6: Final answer
x = 559,808.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.