Finding the Fourth Proportional to 528,851.40, 792,110.70 and 318,121.80
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Solution
The fourth proportional to 528,851.40, 792,110.70 and 318,121.80 is: 476,481.07
Step by Step Solution
- Step 1: Write the proportion equation
528,851.40 : 792,110.70 = 318,121.80 : x - Step 2: Convert to fraction form
528,851.40/792,110.70 = 318,121.80/x - Step 3: Cross multiply
528,851.40x = 792,110.70 × 318,121.80 - Step 4: Simplify right side
528,851.40x = 251,987,681,683.26 - Step 5: Solve for x
x = 251,987,681,683.26/528,851.40 - Step 6: Final answer
x = 476,481.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.