Finding the Fourth Proportional to 390,282.22, 582,125.68 and 378,469.18
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Solution
The fourth proportional to 390,282.22, 582,125.68 and 378,469.18 is: 564,505.93
Step by Step Solution
- Step 1: Write the proportion equation
390,282.22 : 582,125.68 = 378,469.18 : x - Step 2: Convert to fraction form
390,282.22/582,125.68 = 378,469.18/x - Step 3: Cross multiply
390,282.22x = 582,125.68 × 378,469.18 - Step 4: Simplify right side
390,282.22x = 220,316,628,766.54 - Step 5: Solve for x
x = 220,316,628,766.54/390,282.22 - Step 6: Final answer
x = 564,505.93
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.