Finding the Fourth Proportional to 677,646.23, 935,134.68 and 387,239.33
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Solution
The fourth proportional to 677,646.23, 935,134.68 and 387,239.33 is: 534,380.49
Step by Step Solution
- Step 1: Write the proportion equation
677,646.23 : 935,134.68 = 387,239.33 : x - Step 2: Convert to fraction form
677,646.23/935,134.68 = 387,239.33/x - Step 3: Cross multiply
677,646.23x = 935,134.68 × 387,239.33 - Step 4: Simplify right side
677,646.23x = 362,120,922,267.29 - Step 5: Solve for x
x = 362,120,922,267.29/677,646.23 - Step 6: Final answer
x = 534,380.49
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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.