Finding the Fourth Proportional to 1,029,691.70, 1,544,537.55 and 780,859.70
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Solution
The fourth proportional to 1,029,691.70, 1,544,537.55 and 780,859.70 is: 1,171,289.55
Step by Step Solution
- Step 1: Write the proportion equation
1,029,691.70 : 1,544,537.55 = 780,859.70 : x - Step 2: Convert to fraction form
1,029,691.70/1,544,537.55 = 780,859.70/x - Step 3: Cross multiply
1,029,691.70x = 1,544,537.55 × 780,859.70 - Step 4: Simplify right side
1,029,691.70x = 1,206,067,127,931.73 - Step 5: Solve for x
x = 1,206,067,127,931.73/1,029,691.70 - Step 6: Final answer
x = 1,171,289.55
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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.