Finding the Fourth Proportional to 1,671,857.52, 2,307,869.70 and 1,128,729.03
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Solution
The fourth proportional to 1,671,857.52, 2,307,869.70 and 1,128,729.03 is: 1,558,122.92
Step by Step Solution
- Step 1: Write the proportion equation
1,671,857.52 : 2,307,869.70 = 1,128,729.03 : x - Step 2: Convert to fraction form
1,671,857.52/2,307,869.70 = 1,128,729.03/x - Step 3: Cross multiply
1,671,857.52x = 2,307,869.70 × 1,128,729.03 - Step 4: Simplify right side
1,671,857.52x = 2,604,959,527,847.39 - Step 5: Solve for x
x = 2,604,959,527,847.39/1,671,857.52 - Step 6: Final answer
x = 1,558,122.92
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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.