Finding the Fourth Proportional to 1,302,643.80, 1,955,715.30 and 831,418.20
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Solution
The fourth proportional to 1,302,643.80, 1,955,715.30 and 831,418.20 is: 1,248,243.99
Step by Step Solution
- Step 1: Write the proportion equation
1,302,643.80 : 1,955,715.30 = 831,418.20 : x - Step 2: Convert to fraction form
1,302,643.80/1,955,715.30 = 831,418.20/x - Step 3: Cross multiply
1,302,643.80x = 1,955,715.30 × 831,418.20 - Step 4: Simplify right side
1,302,643.80x = 1,626,017,294,438.46 - Step 5: Solve for x
x = 1,626,017,294,438.46/1,302,643.80 - Step 6: Final answer
x = 1,248,243.99
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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.