Finding the Fourth Proportional to 1,230,556.28, 1,698,167.99 and 679,272.32
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Solution
The fourth proportional to 1,230,556.28, 1,698,167.99 and 679,272.32 is: 937,395.98
Step by Step Solution
- Step 1: Write the proportion equation
1,230,556.28 : 1,698,167.99 = 679,272.32 : x - Step 2: Convert to fraction form
1,230,556.28/1,698,167.99 = 679,272.32/x - Step 3: Cross multiply
1,230,556.28x = 1,698,167.99 × 679,272.32 - Step 4: Simplify right side
1,230,556.28x = 1,153,518,503,524.38 - Step 5: Solve for x
x = 1,153,518,503,524.38/1,230,556.28 - Step 6: Final answer
x = 937,395.98
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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.