Finding the Fourth Proportional to 1,221,453.30, 1,831,305.15 and 511,115.70
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Solution
The fourth proportional to 1,221,453.30, 1,831,305.15 and 511,115.70 is: 766,307.49
Step by Step Solution
- Step 1: Write the proportion equation
1,221,453.30 : 1,831,305.15 = 511,115.70 : x - Step 2: Convert to fraction form
1,221,453.30/1,831,305.15 = 511,115.70/x - Step 3: Cross multiply
1,221,453.30x = 1,831,305.15 × 511,115.70 - Step 4: Simplify right side
1,221,453.30x = 936,008,813,655.86 - Step 5: Solve for x
x = 936,008,813,655.86/1,221,453.30 - Step 6: Final answer
x = 766,307.49
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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.