Finding the Fourth Proportional to 716,917.80, 1,075,376.70 and 218,281.80
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Solution
The fourth proportional to 716,917.80, 1,075,376.70 and 218,281.80 is: 327,422.70
Step by Step Solution
- Step 1: Write the proportion equation
716,917.80 : 1,075,376.70 = 218,281.80 : x - Step 2: Convert to fraction form
716,917.80/1,075,376.70 = 218,281.80/x - Step 3: Cross multiply
716,917.80x = 1,075,376.70 × 218,281.80 - Step 4: Simplify right side
716,917.80x = 234,735,161,754.06 - Step 5: Solve for x
x = 234,735,161,754.06/716,917.80 - Step 6: Final answer
x = 327,422.70
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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.