Finding the Fourth Proportional to 791,075.74, 1,186,135.21 and 310,728.53
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Solution
The fourth proportional to 791,075.74, 1,186,135.21 and 310,728.53 is: 465,904.88
Step by Step Solution
- Step 1: Write the proportion equation
791,075.74 : 1,186,135.21 = 310,728.53 : x - Step 2: Convert to fraction form
791,075.74/1,186,135.21 = 310,728.53/x - Step 3: Cross multiply
791,075.74x = 1,186,135.21 × 310,728.53 - Step 4: Simplify right side
791,075.74x = 368,566,050,184.54 - Step 5: Solve for x
x = 368,566,050,184.54/791,075.74 - Step 6: Final answer
x = 465,904.88
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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.