Finding the Fourth Proportional to 871,284.28, 1,306,566.68 and 378,363.53
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Solution
The fourth proportional to 871,284.28, 1,306,566.68 and 378,363.53 is: 567,389.07
Step by Step Solution
- Step 1: Write the proportion equation
871,284.28 : 1,306,566.68 = 378,363.53 : x - Step 2: Convert to fraction form
871,284.28/1,306,566.68 = 378,363.53/x - Step 3: Cross multiply
871,284.28x = 1,306,566.68 × 378,363.53 - Step 4: Simplify right side
871,284.28x = 494,357,175,852.60 - Step 5: Solve for x
x = 494,357,175,852.60/871,284.28 - Step 6: Final answer
x = 567,389.07
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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.