Finding the Fourth Proportional to 728,763.27, 1,006,015.78 and 470,765.99
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Solution
The fourth proportional to 728,763.27, 1,006,015.78 and 470,765.99 is: 649,865.37
Step by Step Solution
- Step 1: Write the proportion equation
728,763.27 : 1,006,015.78 = 470,765.99 : x - Step 2: Convert to fraction form
728,763.27/1,006,015.78 = 470,765.99/x - Step 3: Cross multiply
728,763.27x = 1,006,015.78 × 470,765.99 - Step 4: Simplify right side
728,763.27x = 473,598,014,627.32 - Step 5: Solve for x
x = 473,598,014,627.32/728,763.27 - Step 6: Final answer
x = 649,865.37
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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.