Finding the Fourth Proportional to 869,709.80, 1,304,564.70 and 869,709.80
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Solution
The fourth proportional to 869,709.80, 1,304,564.70 and 869,709.80 is: 1,304,564.70
Step by Step Solution
- Step 1: Write the proportion equation
869,709.80 : 1,304,564.70 = 869,709.80 : x - Step 2: Convert to fraction form
869,709.80/1,304,564.70 = 869,709.80/x - Step 3: Cross multiply
869,709.80x = 1,304,564.70 × 869,709.80 - Step 4: Simplify right side
869,709.80x = 1,134,592,704,324.06 - Step 5: Solve for x
x = 1,134,592,704,324.06/869,709.80 - Step 6: Final answer
x = 1,304,564.70
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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.