Finding the Fourth Proportional to 1,213,972.96, 1,819,541.60 and 913,487.68
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Solution
The fourth proportional to 1,213,972.96, 1,819,541.60 and 913,487.68 is: 1,369,164.63
Step by Step Solution
- Step 1: Write the proportion equation
1,213,972.96 : 1,819,541.60 = 913,487.68 : x - Step 2: Convert to fraction form
1,213,972.96/1,819,541.60 = 913,487.68/x - Step 3: Cross multiply
1,213,972.96x = 1,819,541.60 × 913,487.68 - Step 4: Simplify right side
1,213,972.96x = 1,662,128,834,847.49 - Step 5: Solve for x
x = 1,662,128,834,847.49/1,213,972.96 - Step 6: Final answer
x = 1,369,164.63
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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.