Finding the Fourth Proportional to 624,853.70, 862,086.49 and 409,973.70
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Solution
The fourth proportional to 624,853.70, 862,086.49 and 409,973.70 is: 565,624.86
Step by Step Solution
- Step 1: Write the proportion equation
624,853.70 : 862,086.49 = 409,973.70 : x - Step 2: Convert to fraction form
624,853.70/862,086.49 = 409,973.70/x - Step 3: Cross multiply
624,853.70x = 862,086.49 × 409,973.70 - Step 4: Simplify right side
624,853.70x = 353,432,788,025.31 - Step 5: Solve for x
x = 353,432,788,025.31/624,853.70 - Step 6: Final answer
x = 565,624.86
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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.