Finding the Fourth Proportional to 1,239,816.20, 1,857,948.57 and 706,235.58
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Solution
The fourth proportional to 1,239,816.20, 1,857,948.57 and 706,235.58 is: 1,058,341.87
Step by Step Solution
- Step 1: Write the proportion equation
1,239,816.20 : 1,857,948.57 = 706,235.58 : x - Step 2: Convert to fraction form
1,239,816.20/1,857,948.57 = 706,235.58/x - Step 3: Cross multiply
1,239,816.20x = 1,857,948.57 × 706,235.58 - Step 4: Simplify right side
1,239,816.20x = 1,312,149,385,944.12 - Step 5: Solve for x
x = 1,312,149,385,944.12/1,239,816.20 - Step 6: Final answer
x = 1,058,341.87
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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.