Finding the Fourth Proportional to 723,538.08, 998,545.68 and 421,725.60
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Solution
The fourth proportional to 723,538.08, 998,545.68 and 421,725.60 is: 582,018.12
Step by Step Solution
- Step 1: Write the proportion equation
723,538.08 : 998,545.68 = 421,725.60 : x - Step 2: Convert to fraction form
723,538.08/998,545.68 = 421,725.60/x - Step 3: Cross multiply
723,538.08x = 998,545.68 × 421,725.60 - Step 4: Simplify right side
723,538.08x = 421,112,276,025.41 - Step 5: Solve for x
x = 421,112,276,025.41/723,538.08 - Step 6: Final answer
x = 582,018.12
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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.