Finding the Fourth Proportional to 358,469.80, 537,704.70 and 319,762.60
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Solution
The fourth proportional to 358,469.80, 537,704.70 and 319,762.60 is: 479,643.90
Step by Step Solution
- Step 1: Write the proportion equation
358,469.80 : 537,704.70 = 319,762.60 : x - Step 2: Convert to fraction form
358,469.80/537,704.70 = 319,762.60/x - Step 3: Cross multiply
358,469.80x = 537,704.70 × 319,762.60 - Step 4: Simplify right side
358,469.80x = 171,937,852,904.22 - Step 5: Solve for x
x = 171,937,852,904.22/358,469.80 - Step 6: Final answer
x = 479,643.90
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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.