Finding the Fourth Proportional to 1,543,211.20, 2,124,772.76 and 1,310,177.21
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Solution
The fourth proportional to 1,543,211.20, 2,124,772.76 and 1,310,177.21 is: 1,803,919.55
Step by Step Solution
- Step 1: Write the proportion equation
1,543,211.20 : 2,124,772.76 = 1,310,177.21 : x - Step 2: Convert to fraction form
1,543,211.20/2,124,772.76 = 1,310,177.21/x - Step 3: Cross multiply
1,543,211.20x = 2,124,772.76 × 1,310,177.21 - Step 4: Simplify right side
1,543,211.20x = 2,783,828,846,580.80 - Step 5: Solve for x
x = 2,783,828,846,580.80/1,543,211.20 - Step 6: Final answer
x = 1,803,919.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.