Finding the Fourth Proportional to 677,946.78, 935,334.84 and 387,349.84
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Solution
The fourth proportional to 677,946.78, 935,334.84 and 387,349.84 is: 534,410.39
Step by Step Solution
- Step 1: Write the proportion equation
677,946.78 : 935,334.84 = 387,349.84 : x - Step 2: Convert to fraction form
677,946.78/935,334.84 = 387,349.84/x - Step 3: Cross multiply
677,946.78x = 935,334.84 × 387,349.84 - Step 4: Simplify right side
677,946.78x = 362,301,800,620.43 - Step 5: Solve for x
x = 362,301,800,620.43/677,946.78 - Step 6: Final answer
x = 534,410.39
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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.