Finding the Fourth Proportional to 1,312,954.40, 1,968,049.20 and 513,927.20
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Solution
The fourth proportional to 1,312,954.40, 1,968,049.20 and 513,927.20 is: 770,349.69
Step by Step Solution
- Step 1: Write the proportion equation
1,312,954.40 : 1,968,049.20 = 513,927.20 : x - Step 2: Convert to fraction form
1,312,954.40/1,968,049.20 = 513,927.20/x - Step 3: Cross multiply
1,312,954.40x = 1,968,049.20 × 513,927.20 - Step 4: Simplify right side
1,312,954.40x = 1,011,434,014,818.24 - Step 5: Solve for x
x = 1,011,434,014,818.24/1,312,954.40 - Step 6: Final answer
x = 770,349.69
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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.