Finding the Fourth Proportional to 417,747.80, 626,621.70 and 207,795.80
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Solution
The fourth proportional to 417,747.80, 626,621.70 and 207,795.80 is: 311,693.70
Step by Step Solution
- Step 1: Write the proportion equation
417,747.80 : 626,621.70 = 207,795.80 : x - Step 2: Convert to fraction form
417,747.80/626,621.70 = 207,795.80/x - Step 3: Cross multiply
417,747.80x = 626,621.70 × 207,795.80 - Step 4: Simplify right side
417,747.80x = 130,209,357,448.86 - Step 5: Solve for x
x = 130,209,357,448.86/417,747.80 - Step 6: Final answer
x = 311,693.70
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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.