Finding the Fourth Proportional to 677,952.80, 935,343.12 and 387,355.84
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Solution
The fourth proportional to 677,952.80, 935,343.12 and 387,355.84 is: 534,418.65
Step by Step Solution
- Step 1: Write the proportion equation
677,952.80 : 935,343.12 = 387,355.84 : x - Step 2: Convert to fraction form
677,952.80/935,343.12 = 387,355.84/x - Step 3: Cross multiply
677,952.80x = 935,343.12 × 387,355.84 - Step 4: Simplify right side
677,952.80x = 362,310,619,935.82 - Step 5: Solve for x
x = 362,310,619,935.82/677,952.80 - Step 6: Final answer
x = 534,418.65
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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.