Finding the Fourth Proportional to 1,108,776.70, 1,662,679.05 and 509,538.70
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Solution
The fourth proportional to 1,108,776.70, 1,662,679.05 and 509,538.70 is: 764,084.71
Step by Step Solution
- Step 1: Write the proportion equation
1,108,776.70 : 1,662,679.05 = 509,538.70 : x - Step 2: Convert to fraction form
1,108,776.70/1,662,679.05 = 509,538.70/x - Step 3: Cross multiply
1,108,776.70x = 1,662,679.05 × 509,538.70 - Step 4: Simplify right side
1,108,776.70x = 847,199,321,654.24 - Step 5: Solve for x
x = 847,199,321,654.24/1,108,776.70 - Step 6: Final answer
x = 764,084.71
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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.