Finding the Fourth Proportional to 1,815,312.74, 2,505,110.91 and 999,499.37
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Solution
The fourth proportional to 1,815,312.74, 2,505,110.91 and 999,499.37 is: 1,379,297.75
Step by Step Solution
- Step 1: Write the proportion equation
1,815,312.74 : 2,505,110.91 = 999,499.37 : x - Step 2: Convert to fraction form
1,815,312.74/2,505,110.91 = 999,499.37/x - Step 3: Cross multiply
1,815,312.74x = 2,505,110.91 × 999,499.37 - Step 4: Simplify right side
1,815,312.74x = 2,503,856,776,325.13 - Step 5: Solve for x
x = 2,503,856,776,325.13/1,815,312.74 - Step 6: Final answer
x = 1,379,297.75
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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.