Finding the Fourth Proportional to 759,075.40, 1,138,812.71 and 272,806.65
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Solution
The fourth proportional to 759,075.40, 1,138,812.71 and 272,806.65 is: 409,281.71
Step by Step Solution
- Step 1: Write the proportion equation
759,075.40 : 1,138,812.71 = 272,806.65 : x - Step 2: Convert to fraction form
759,075.40/1,138,812.71 = 272,806.65/x - Step 3: Cross multiply
759,075.40x = 1,138,812.71 × 272,806.65 - Step 4: Simplify right side
759,075.40x = 310,675,679,028.49 - Step 5: Solve for x
x = 310,675,679,028.49/759,075.40 - Step 6: Final answer
x = 409,281.71
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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.