Finding the Fourth Proportional to 678,103.75, 935,812.34 and 376,297.75
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Solution
The fourth proportional to 678,103.75, 935,812.34 and 376,297.75 is: 519,307.08
Step by Step Solution
- Step 1: Write the proportion equation
678,103.75 : 935,812.34 = 376,297.75 : x - Step 2: Convert to fraction form
678,103.75/935,812.34 = 376,297.75/x - Step 3: Cross multiply
678,103.75x = 935,812.34 × 376,297.75 - Step 4: Simplify right side
678,103.75x = 352,144,077,964.24 - Step 5: Solve for x
x = 352,144,077,964.24/678,103.75 - Step 6: Final answer
x = 519,307.08
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1.5x scale
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.