Finding the Fourth Proportional to 985,657.70, 1,478,486.55 and 985,657.70
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Solution
The fourth proportional to 985,657.70, 1,478,486.55 and 985,657.70 is: 1,478,486.55
Step by Step Solution
- Step 1: Write the proportion equation
985,657.70 : 1,478,486.55 = 985,657.70 : x - Step 2: Convert to fraction form
985,657.70/1,478,486.55 = 985,657.70/x - Step 3: Cross multiply
985,657.70x = 1,478,486.55 × 985,657.70 - Step 4: Simplify right side
985,657.70x = 1,457,281,652,353.94 - Step 5: Solve for x
x = 1,457,281,652,353.94/985,657.70 - Step 6: Final answer
x = 1,478,486.55
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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.