Finding the Fourth Proportional to 1,347,209.70, 2,020,814.55 and 868,912.80
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Solution
The fourth proportional to 1,347,209.70, 2,020,814.55 and 868,912.80 is: 1,303,369.20
Step by Step Solution
- Step 1: Write the proportion equation
1,347,209.70 : 2,020,814.55 = 868,912.80 : x - Step 2: Convert to fraction form
1,347,209.70/2,020,814.55 = 868,912.80/x - Step 3: Cross multiply
1,347,209.70x = 2,020,814.55 × 868,912.80 - Step 4: Simplify right side
1,347,209.70x = 1,755,911,628,921.24 - Step 5: Solve for x
x = 1,755,911,628,921.24/1,347,209.70 - Step 6: Final answer
x = 1,303,369.20
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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.