Finding the Third Proportional to 640,716 and 1,409,332
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Solution
The third proportional to 640,716 and 1,409,332 is: 3,099,995.45
Step by Step Solution
- Step 1: Write the proportion equation
640,716 : 1,409,332 = 1,409,332 : x - Step 2: Convert to fraction form
640,716/1,409,332 = 1,409,332/x - Step 3: Cross multiply
640,716x = 1,409,332 × 1,409,332 - Step 4: Simplify right side
640,716x = 1,986,216,686,224 - Step 5: Solve for x
x = 1,986,216,686,224/640,716 - Step 6: Final answer
x = 3,099,995.45
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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.