Finding the Fourth Proportional to 784,830.80, 1,177,246.20 and 731,686.70
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Solution
The fourth proportional to 784,830.80, 1,177,246.20 and 731,686.70 is: 1,097,530.05
Step by Step Solution
- Step 1: Write the proportion equation
784,830.80 : 1,177,246.20 = 731,686.70 : x - Step 2: Convert to fraction form
784,830.80/1,177,246.20 = 731,686.70/x - Step 3: Cross multiply
784,830.80x = 1,177,246.20 × 731,686.70 - Step 4: Simplify right side
784,830.80x = 861,375,387,165.54 - Step 5: Solve for x
x = 861,375,387,165.54/784,830.80 - Step 6: Final answer
x = 1,097,530.05
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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.