Finding the Fourth Proportional to 1,447,164.08, 1,997,209.12 and 802,791.90
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Solution
The fourth proportional to 1,447,164.08, 1,997,209.12 and 802,791.90 is: 1,107,920.88
Step by Step Solution
- Step 1: Write the proportion equation
1,447,164.08 : 1,997,209.12 = 802,791.90 : x - Step 2: Convert to fraction form
1,447,164.08/1,997,209.12 = 802,791.90/x - Step 3: Cross multiply
1,447,164.08x = 1,997,209.12 × 802,791.90 - Step 4: Simplify right side
1,447,164.08x = 1,603,343,304,142.13 - Step 5: Solve for x
x = 1,603,343,304,142.13/1,447,164.08 - Step 6: Final answer
x = 1,107,920.88
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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.