Finding the Fourth Proportional to 1,539,390.32, 2,124,361.72 and 860,326.80
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Solution
The fourth proportional to 1,539,390.32, 2,124,361.72 and 860,326.80 is: 1,187,252.70
Step by Step Solution
- Step 1: Write the proportion equation
1,539,390.32 : 2,124,361.72 = 860,326.80 : x - Step 2: Convert to fraction form
1,539,390.32/2,124,361.72 = 860,326.80/x - Step 3: Cross multiply
1,539,390.32x = 2,124,361.72 × 860,326.80 - Step 4: Simplify right side
1,539,390.32x = 1,827,645,320,610.10 - Step 5: Solve for x
x = 1,827,645,320,610.10/1,539,390.32 - Step 6: Final answer
x = 1,187,252.70
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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.