Finding the Fourth Proportional to 708,713.26, 1,062,675.55 and 420,641.98
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Solution
The fourth proportional to 708,713.26, 1,062,675.55 and 420,641.98 is: 630,728.91
Step by Step Solution
- Step 1: Write the proportion equation
708,713.26 : 1,062,675.55 = 420,641.98 : x - Step 2: Convert to fraction form
708,713.26/1,062,675.55 = 420,641.98/x - Step 3: Cross multiply
708,713.26x = 1,062,675.55 × 420,641.98 - Step 4: Simplify right side
708,713.26x = 447,005,945,318.70 - Step 5: Solve for x
x = 447,005,945,318.70/708,713.26 - Step 6: Final answer
x = 630,728.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.