Finding the Fourth Proportional to 1,426,721.34, 1,968,875.27 and 782,146.08
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Solution
The fourth proportional to 1,426,721.34, 1,968,875.27 and 782,146.08 is: 1,079,361.50
Step by Step Solution
- Step 1: Write the proportion equation
1,426,721.34 : 1,968,875.27 = 782,146.08 : x - Step 2: Convert to fraction form
1,426,721.34/1,968,875.27 = 782,146.08/x - Step 3: Cross multiply
1,426,721.34x = 1,968,875.27 × 782,146.08 - Step 4: Simplify right side
1,426,721.34x = 1,539,948,075,450.90 - Step 5: Solve for x
x = 1,539,948,075,450.90/1,426,721.34 - Step 6: Final answer
x = 1,079,361.50
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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.