Finding the Fourth Proportional to 687,125.48, 948,018.34 and 396,698.92
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Solution
The fourth proportional to 687,125.48, 948,018.34 and 396,698.92 is: 547,320.49
Step by Step Solution
- Step 1: Write the proportion equation
687,125.48 : 948,018.34 = 396,698.92 : x - Step 2: Convert to fraction form
687,125.48/948,018.34 = 396,698.92/x - Step 3: Cross multiply
687,125.48x = 948,018.34 × 396,698.92 - Step 4: Simplify right side
687,125.48x = 376,077,851,618.19 - Step 5: Solve for x
x = 376,077,851,618.19/687,125.48 - Step 6: Final answer
x = 547,320.49
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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.