Finding the Fourth Proportional to 687,224.87, 1,030,423.14 and 308,076.99
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Solution
The fourth proportional to 687,224.87, 1,030,423.14 and 308,076.99 is: 461,929.81
Step by Step Solution
- Step 1: Write the proportion equation
687,224.87 : 1,030,423.14 = 308,076.99 : x - Step 2: Convert to fraction form
687,224.87/1,030,423.14 = 308,076.99/x - Step 3: Cross multiply
687,224.87x = 1,030,423.14 × 308,076.99 - Step 4: Simplify right side
687,224.87x = 317,449,655,533.46 - Step 5: Solve for x
x = 317,449,655,533.46/687,224.87 - Step 6: Final answer
x = 461,929.81
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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.