Finding the Fourth Proportional to 1,369,515.62, 1,889,930.12 and 765,903.62
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Solution
The fourth proportional to 1,369,515.62, 1,889,930.12 and 765,903.62 is: 1,056,946.19
Step by Step Solution
- Step 1: Write the proportion equation
1,369,515.62 : 1,889,930.12 = 765,903.62 : x - Step 2: Convert to fraction form
1,369,515.62/1,889,930.12 = 765,903.62/x - Step 3: Cross multiply
1,369,515.62x = 1,889,930.12 × 765,903.62 - Step 4: Simplify right side
1,369,515.62x = 1,447,504,320,455.03 - Step 5: Solve for x
x = 1,447,504,320,455.03/1,369,515.62 - Step 6: Final answer
x = 1,056,946.19
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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.