Finding the Fourth Proportional to 1,419,705.20, 2,129,557.80 and 859,833.20
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Solution
The fourth proportional to 1,419,705.20, 2,129,557.80 and 859,833.20 is: 1,289,749.80
Step by Step Solution
- Step 1: Write the proportion equation
1,419,705.20 : 2,129,557.80 = 859,833.20 : x - Step 2: Convert to fraction form
1,419,705.20/2,129,557.80 = 859,833.20/x - Step 3: Cross multiply
1,419,705.20x = 2,129,557.80 × 859,833.20 - Step 4: Simplify right side
1,419,705.20x = 1,831,064,497,758.96 - Step 5: Solve for x
x = 1,831,064,497,758.96/1,419,705.20 - Step 6: Final answer
x = 1,289,749.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.