Finding the Fourth Proportional to 487,567.20, 670,929.84 and 431,113.44
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Solution
The fourth proportional to 487,567.20, 670,929.84 and 431,113.44 is: 593,245.14
Step by Step Solution
- Step 1: Write the proportion equation
487,567.20 : 670,929.84 = 431,113.44 : x - Step 2: Convert to fraction form
487,567.20/670,929.84 = 431,113.44/x - Step 3: Cross multiply
487,567.20x = 670,929.84 × 431,113.44 - Step 4: Simplify right side
487,567.20x = 289,246,871,321.05 - Step 5: Solve for x
x = 289,246,871,321.05/487,567.20 - Step 6: Final answer
x = 593,245.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.