Finding the Fourth Proportional to 1,235,711.80, 1,853,567.70 and 986,879.80
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Solution
The fourth proportional to 1,235,711.80, 1,853,567.70 and 986,879.80 is: 1,480,319.70
Step by Step Solution
- Step 1: Write the proportion equation
1,235,711.80 : 1,853,567.70 = 986,879.80 : x - Step 2: Convert to fraction form
1,235,711.80/1,853,567.70 = 986,879.80/x - Step 3: Cross multiply
1,235,711.80x = 1,853,567.70 × 986,879.80 - Step 4: Simplify right side
1,235,711.80x = 1,829,248,521,062.46 - Step 5: Solve for x
x = 1,829,248,521,062.46/1,235,711.80 - Step 6: Final answer
x = 1,480,319.70
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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.