Finding the Fourth Proportional to 1,941,723.40, 2,912,585.10 and 1,307,201.80
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Solution
The fourth proportional to 1,941,723.40, 2,912,585.10 and 1,307,201.80 is: 1,960,802.70
Step by Step Solution
- Step 1: Write the proportion equation
1,941,723.40 : 2,912,585.10 = 1,307,201.80 : x - Step 2: Convert to fraction form
1,941,723.40/2,912,585.10 = 1,307,201.80/x - Step 3: Cross multiply
1,941,723.40x = 2,912,585.10 × 1,307,201.80 - Step 4: Simplify right side
1,941,723.40x = 3,807,336,485,373.18 - Step 5: Solve for x
x = 3,807,336,485,373.18/1,941,723.40 - Step 6: Final answer
x = 1,960,802.70
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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.