Finding the Fourth Proportional to 1,213,862.78, 1,674,880.56 and 697,516.92
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Solution
The fourth proportional to 1,213,862.78, 1,674,880.56 and 697,516.92 is: 962,429.65
Step by Step Solution
- Step 1: Write the proportion equation
1,213,862.78 : 1,674,880.56 = 697,516.92 : x - Step 2: Convert to fraction form
1,213,862.78/1,674,880.56 = 697,516.92/x - Step 3: Cross multiply
1,213,862.78x = 1,674,880.56 × 697,516.92 - Step 4: Simplify right side
1,213,862.78x = 1,168,257,529,579.08 - Step 5: Solve for x
x = 1,168,257,529,579.08/1,213,862.78 - Step 6: Final answer
x = 962,429.65
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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.