Finding the Fourth Proportional to 714,859.34, 986,509.19 and 408,939.08
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Solution
The fourth proportional to 714,859.34, 986,509.19 and 408,939.08 is: 564,337.82
Step by Step Solution
- Step 1: Write the proportion equation
714,859.34 : 986,509.19 = 408,939.08 : x - Step 2: Convert to fraction form
714,859.34/986,509.19 = 408,939.08/x - Step 3: Cross multiply
714,859.34x = 986,509.19 × 408,939.08 - Step 4: Simplify right side
714,859.34x = 403,422,156,659.95 - Step 5: Solve for x
x = 403,422,156,659.95/714,859.34 - Step 6: Final answer
x = 564,337.82
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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.