Finding the Fourth Proportional to 1,860,315.36, 2,565,471.60 and 1,216,287.60
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Solution
The fourth proportional to 1,860,315.36, 2,565,471.60 and 1,216,287.60 is: 1,677,323.84
Step by Step Solution
- Step 1: Write the proportion equation
1,860,315.36 : 2,565,471.60 = 1,216,287.60 : x - Step 2: Convert to fraction form
1,860,315.36/2,565,471.60 = 1,216,287.60/x - Step 3: Cross multiply
1,860,315.36x = 2,565,471.60 × 1,216,287.60 - Step 4: Simplify right side
1,860,315.36x = 3,120,351,295,232.16 - Step 5: Solve for x
x = 3,120,351,295,232.16/1,860,315.36 - Step 6: Final answer
x = 1,677,323.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.