Finding the Fourth Proportional to 1,137,769.02, 1,706,719.12 and 427,803.21
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Solution
The fourth proportional to 1,137,769.02, 1,706,719.12 and 427,803.21 is: 641,729.48
Step by Step Solution
- Step 1: Write the proportion equation
1,137,769.02 : 1,706,719.12 = 427,803.21 : x - Step 2: Convert to fraction form
1,137,769.02/1,706,719.12 = 427,803.21/x - Step 3: Cross multiply
1,137,769.02x = 1,706,719.12 × 427,803.21 - Step 4: Simplify right side
1,137,769.02x = 730,139,917,034.87 - Step 5: Solve for x
x = 730,139,917,034.87/1,137,769.02 - Step 6: Final answer
x = 641,729.48
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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.